61 research outputs found
Twitter Users with Access to Academic Library Services Request Health Sciences Literature through Social Media
A Review of:
Swab, M., & Romme, K. (2016). Scholarly sharing via Twitter: #icanhazpdf requests for health sciences literature. Journal of the Canadian Health Libraries Association, 37(1), 6-11. http://dx.doi.org/10.5596/c16-009
Objective â To analyze article sharing requests for health sciences literature on Twitter, received through the #icanhazpdf protocol.
Design â Social media content analysis.
Setting â Twitter.
Subjects â 302 tweets requesting health sciences articles with the #icanhazpdf tag.
Methods â The authors used a subscription service called RowFeeder to collect public tweets posted with the hashtag #icanhazpdf between February and April 2015. Rowfeeder recorded the Twitter user name, location, date and time, URL, and content of the tweet. The authors excluded all retweets and then each reviewed one of two sets. They recorded the geographic region and affiliation of the requestor, whether the tweet was a request or comment, type of material requested, how the item was identified, and if the subject of the request was health or non-health. Health requests were further classified using the Scopus subject category of the journal. A journal could be classified with more than one category. Any uncertainties during the coding process were resolved by both authors reviewing the tweet and reaching a consensus.
Main results â After excluding all the retweets and comments, 1079 tweets were coded as heath or non-health related. A final set of 302 health related requests were further analyzed. Almost all the requests were for journal articles (99%, n=300). The highest-ranking subject was medicine (64.9%, n=196), and the lowest was dentistry (0.3%, n=1). The most common article identifier was a link to the publisherâs website (50%, n=152), followed by a link to the PubMed record (22%, n=67). Articles were also identified by citation information (11%, n=32), DOI (5%, n=14), a direct request to an individual (3%, n=9), another method (2%, n=6), or multiple identifiers (7%, n=22). The majority of requests originated from the UK and Ireland (29.1%, n=88), the United States (26.5%, n=80), and the rest of Europe (19.2%, n=58. Many requests came from people with affiliations to an academic institution (45%, n=136). These included librarians (3.3%, n=10), students (13.6%, n=41), and academics (28.1%, n=85). When tweets of unknown affiliation were excluded (n=117), over 70% of the requests were from people with academic links. Other requesters included journalists, clinicians, non-profit organisations, patients, and industry employees. The authors examined comments in the tweets to gain some understanding of the reasons for seeking articles through #icanhazpdf, although this was not the primary focus of their study. A preliminary examination of the comments suggested that users value the ease, convenience, and the ability to connect with other researchers that social media offers.
Conclusion â The authors concluded that the number of requests for health sciences literature through this channel is modest, but health librarians should be aware of #icanhazpdf as another method through which their users might seek to obtain articles. The authors recommend further research into the reasons why users sometimes choose social media over the library to obtain articles
A Study of a Sample of Facebook Users Finds They Do Not Seek Political News through Facebook But Are Exposed to Political News through This Medium
Abstract
A Review of:
Schaferm, S., Sulflow, M., & Muller, P. (2017). The special taste of snack news: an application of niche theory to understand the appeal of Facebook as a source for political news. First Monday, 22(4-3). http://dx.doi.org/10.5210/fm.v22i4.7431
Abstract
Objective â To investigate Facebook as a source of exposure to political news stories and to compare the reasons for using Facebook as a news source and the gratifications obtained, compared with other news sources.
Design â Survey questionnaire.
Setting â Facebook.
Subjects â 422 German Facebook users.
Methods â An online survey was developed to investigate the use of Facebook as a news source compared with other sources. Specific research questions were informed by the âtheory of nicheâ (Dimmick, 2003) which examines the coexistence and competition between different media outlets by examining the breadth, overlap and superiority of one platform over another. The survey was distributed using a âsnowballâ technique between July and August 2015. The survey was shared by 52 student research assistants on their Facebook profiles. They asked their friends to complete the survey and share it with their own networks.
Main results â The mean (M) age of the 422 respondents was 23.5 years (SD=8.25). The majority were female (61%) with a high school degree (89%). TV news and news websites were the most frequently used sources of political news. Facebook ranked third, ahead of newspapers, search engines, magazines, email provider websites, and Twitter. The mean score for the importance of Facebook as a news sources was 2.46 (SD=1.13) on a scale of 1 to 5, where 1 is low and 5 is high. This fell in the middle of the range when compared with the top ranked source assessed by importance (TV news, M 4.40, SD=0.88) and the lowest (email providers, M 1.92, SD=0.97). Users rarely visited Facebook with the purpose of finding news (M 1.59, SD=0.73). However, they estimated around 24% of the posts they see were concerned with political news, and when encountered, these stories are frequently read (M 3.53, SD=1.18). However, the level of interaction as measured by liking, commenting, sharing or status updates was low (M 1.94 SD=1.09; M 1.37, SD=0.79; M 1.51, SD=0.85 and M 1.4, SD=0.78 respectively). The âgratificationâ categories where Facebook as a news source scored the highest were for killing time (M 2.97, SD=1.29), entertainment (M 2.92, SD=1.05), and surveillance (M 2.77, SD=1.01). When compared to newspapers and TV news, it was found that Facebook has a lower score for niche breadth, meaning that it serves a specific rather than general news function. Facebook also had a lower overlap score when compared with the other media, thereby performing a complementary function, while TV news and newspapers perform similarly. TV news scored better for providing balanced information, surveillance and social utility while Facebook scored highest for killing time. There was no difference in the category of entertainment. There was a similar picture when comparing Facebook with newspapers.
Conclusion â The authors conclude that while users do not actively seek political news through Facebook, they are exposed to political news through this medium. Respondents did not consider the news to be well balanced, and that currently Facebooksâ niche is restricted to entertainment and killing time. The authors note that this may be disappointing for news organisations, but there is potential to expose large audiences to political news when they are not actively seeking it. The findings represent a specific time point in a changing landscape and future research will need to take these changes into account. Comparisons with other online news sources and the use of objective measures to validate self-reported data would be valuable areas for future research
Web-Scale Discovery Services Retrieve Relevant Results in Health Sciences Topics Including MEDLINE Content
A Review of:
Hanneke, R., & OâBrien, K. K. (2016). Comparison of three web-scale discovery services for health sciences research. Journal of the Medical Library Association, 104(2), 109-117. http://dx.doi.org/10.3163/1536-5050.104.2.004
Abstract
Objective â To compare the results of health sciences search queries in three web-scale discovery (WSD) services for relevance, duplicate detection, and retrieval of MEDLINE content.
Design â Comparative evaluation and bibliometric study.
Setting â Six university libraries in the United States of America.
Subjects â Three commercial WSD services: Primo, Summon, and EBSCO Discovery Service (EDS).
Methods â The authors collected data at six universities, including their own. They tested each of the three WSDs at two data collection sites. However, since one of the sites was using a legacy version of Summon that was due to be upgraded, data collected for Summon at this site were considered obsolete and excluded from the analysis.
The authors generated three questions for each of six major health disciplines, then designed simple keyword searches to mimic typical student search behaviours. They captured the first 20 results from each query run at each test site, to represent the first âpageâ of results, giving a total of 2,086 total search results. These were independently assessed for relevance to the topic. Authors resolved disagreements by discussion, and calculated a kappa inter-observer score. They retained duplicate records within the results so that the duplicate detection by the WSDs could be compared.
They assessed MEDLINE coverage by the WSDs in several ways. Using precise strategies to generate a relevant set of articles, they conducted one search from each of the six disciplines in PubMed so that they could compare retrieval of MEDLINE content. These results were cross-checked against the first 20 results from the corresponding query in the WSDs. To aid investigation of overall coverage of MEDLINE, they recorded the first 50 results from each of the 6 PubMed searches in a spreadsheet. During data collection at the WSD sites, they searched for these references to discover if the WSD tool at each site indexed these known items.
Authors adopted measures to control for any customisation of the product setup at each data collection site. In particular, they excluded local holdings from the results by limiting the searches to scholarly, peer-reviewed articles.
Main results â Authors reported results for 5 of the 6 sites. All of the WSD tools retrieved between 50-60% relevant results. EDS retrieved the highest number of relevant records (195/360 and 216/360), while Primo retrieved the lowest (167/328 and 169/325). There was good observer agreement (k=0.725) for the relevance assessment. The duplicate detection rate was similar in EDS and Summon (between 96-97% unique articles), while the Primo searches returned 82.9-84.9% unique articles.
All three tools retrieved relevant results that were not indexed in MEDLINE, and retrieved relevant material indexed in MEDLINE that was not retrieved in the PubMed searches. EDS and Summon retrieved more non-MEDLINE material than Primo. EDS performed best in the known-item searches, with 300/300 and 299/300 items retrieved, while Primo performed worst with 230/300 and 267/300 items retrieved.
The Summon platform features an âautomated query expansionâ search function, where user-entered keywords are matched to related search terms and these are automatically searched along with the original keyword. The authors observed that this function resulted in a wholly relevant first page of results for one of the search questions tested in Summon.
Conclusion â While EDS performed slightly better overall, the difference was not great enough in this small sample of test sites to recommend EDS over the other tools being tested. The automated query expansion found in Summon is a useful function that is worthy of further investigation by the WSD vendors. The ability of the WSDs to retrieve MEDLINE content through simple keyword searches demonstrates the potential value of using a WSD tool in health sciences research, particularly for inexpert searchers
Parentage reconstruction in eucalyptus nitens using SNPs and microsatellite markers: a comparative analysis of marker data power and robustness.
Sheep Updates 2005 - Part 7
This session covers eight papers from different authors:
POSTERS
1. Sulpher in wool and its implications for fleece weight and sheep health, SM Liu, AC Schlink, JR Williams, CSIRO Livestock Industries Wembley WA, ME Dowling,JCGreef, Department of Agriculture Western Australia.
2. Stubbles for sheep: a reality check, Roy Butler, Keith Croker, Department of Agriculture Western Australia.
3. Genetic benchmarking using artificial insemination, LC Butler, JC Greeff, Department of Agriculture Western Australia.
4. The potential lambing performances of ewes in mixed age flocks, Kieth Croker, Department of Agriculture Western Australia, Rob Davidson, WAMMCO International, formally University of Western Australia, Ken Hart, Department of Agriculture Western Australia,Doug Harrington Cowcher Farms Narrogin, Mario D\u27Antuono, Department of Agriculture Western Australia.
5. National Livestock Identification System (Sheep) in Western Australia, Julian Gardner, Department of Agriculture Western Australia.
DISPLAYS - TOOLS
6. To Feed or Not to Feed - I Only Hamlet had the Calculator!, Geoff Duddy, Livestock Officer(Sheep & Wool) Yanco.
7. WormBoss - a national Australian computer-based sheep worm control tool, RG Woodgate, Department of Agriculture Western Australia, A LeFeuvre, Queensland Department of Primary Industries and Fisheries, and Genie Pty Ltd, Warwick Qld, A Bailey, Department of Primary Industries, Water and Environment, Kings Meadow Tas, RB Besier, Department of Agriculture Western Australia, N. Campbell, Department of Primary Industries Victoria, Attwood Vic, I Carmichael, South Australian Research and Development Institute, Glenside SA, S. Love, NSW Department of Primary Industries, Armidale NSW.
8. \u27Eye in the sky\u27 takes guesswork out of farmers pasture decisions, Richard Stovold, Department of Land Informatio
Core outcome set for the management of acute exacerbations of chronic obstructive pulmonary disease: the COS-AECOPD ERS Task Force study protocol.
Randomised controlled trials (RCTs) on the management of COPD exacerbations evaluate heterogeneous outcomes, often omitting those that are clinically important and patient relevant. This limits their usability and comparability. A core outcome set (COS) is a consensus-based minimum set of clinically important outcomes that should be evaluated in all RCTs in specific areas of health care. We present the study protocol of the COS-AECOPD ERS Task Force, aiming to develop a COS for COPD exacerbation management, that could remedy these limitations. For the development of this COS we follow standard methodology recommended by the COMET initiative. A comprehensive list of outcomes is assembled through a methodological systematic review of the outcomes reported in relevant RCTs. Qualitative research with patients with COPD will also be conducted, aiming to identify additional outcomes that may be important to patients, but are not currently addressed in clinical research studies. Prioritisation of the core outcomes will be facilitated through an extensive, multi-stakeholder Delphi survey with a global reach. Selection will be finalised in an international, multi-stakeholder meeting. For every core outcome, we will recommend a specific measurement instrument and standardised time points for evaluation. Selection of instruments will be based on evidence-informed consensus. Our work will improve the quality, usability and comparability of future RCTs on the management of COPD exacerbations and, ultimately, the care of patients with COPD. Multi-stakeholder engagement and societal support by the European Respiratory Society will raise awareness and promote implementation of the COS
ERS statement: A core outcome set for clinical trials evaluating the management of COPD exacerbations
Clinical trials evaluating the management of acute exacerbations of COPD assess heterogeneous outcomes, often omitting those that are clinically relevant or more important to patients. We have developed a core outcome set, a consensus-based minimum set of important outcomes that we recommend are evaluated in all future clinical trials on exacerbations management, to improve their quality and comparability. COPD exacerbations outcomes were identified through methodological systematic reviews and qualitative interviews with 86 patients from 11 countries globally. The most critical outcomes were prioritised for inclusion in the core outcome set through a two-round Delphi survey completed by 1063 participants (256 patients, 488 health professionals and 319 clinical academics) from 88 countries in five continents. Two global, multi-stakeholder, virtual consensus meetings were conducted to 1) finalise the core outcome set and 2) prioritise a single measurement instrument to be used for evaluating each of the prioritised outcomes. Consensus was informed by rigorous methodological systematic reviews. The views of patients with COPD were accounted for at all stages of the project. Survival, treatment success, breathlessness, quality of life, activities of daily living, the need for a higher level of care, arterial blood gases, disease progression, future exacerbations and hospital admissions, treatment safety and adherence were all included in the core outcome set. Focused methodological research was recommended to further validate and optimise some of the selected measurement instruments. The panel did not consider the prioritised set of outcomes and associated measurement instruments to be burdensome for patients and health professionals to use
Individual-level interventions to reduce personal exposure to outdoor air pollution and their effects on people with long-term respiratory conditions.
BACKGROUND: More than 90% of the global population lives in areas exceeding World Health Organization air quality limits. More than four million people each year are thought to die early due to air pollution, and poor air quality is thought to reduce an average European's life expectancy by one year. Individuals may be able to reduce health risks through interventions such as masks, behavioural changes and use of air quality alerts. To date, evidence is lacking about the efficacy and safety of such interventions for the general population and people with long-term respiratory conditions. This topic, and the review question relating to supporting evidence to avoid or lessen the effects of air pollution, emerged directly from a group of people with chronic obstructive pulmonary disease (COPD) in South London, UK. OBJECTIVES: 1. To assess the efficacy, safety and acceptability of individual-level interventions that aim to help people with or without chronic respiratory conditions to reduce their exposure to outdoor air pollution. 2. To assess the efficacy, safety and acceptability of individual-level interventions that aim to help people with chronic respiratory conditions reduce the personal impact of outdoor air pollution and improve health outcomes. SEARCH METHODS: We identified studies from the Cochrane Airways Trials Register, Cochrane Central Register of Controlled Trials, and other major databases. We did not restrict our searches by date, language or publication type and included a search of the grey literature (e.g. unpublished information). We conducted the most recent search on 16 October 2020. SELECTION CRITERIA: We included randomised controlled trials (RCTs) and non-randomised studies (NRS) that included a comparison treatment arm, in adults and children that investigated the effectiveness of an individual-level intervention to reduce risks of outdoor air pollution. We included studies in healthy individuals and those in people with long-term respiratory conditions. We excluded studies which focused on non-respiratory long-term conditions, such as cardiovascular disease. We did not restrict eligibility of studies based on outcomes. DATA COLLECTION AND ANALYSIS: We used standard Cochrane methods. Two review authors independently selected trials for inclusion, extracted study characteristics and outcome data, and assessed risk of bias using the Cochrane Risk of Bias tool for RCTs and the Risk Of Bias In Non-randomised Studies - of Interventions (ROBINS-I) as appropriate. One review author entered data into the review; this was spot-checked by a second author. We planned to meta-analyse results from RCTs and NRS separately, using a random-effects model. This was not possible, so we presented evidence narratively. We assessed certainty of the evidence using the GRADE approach. Primary outcomes were: measures of air pollution exposure; exacerbation of respiratory conditions; hospital admissions; quality of life; and serious adverse events. MAIN RESULTS: We identified 11 studies (3372 participants) meeting our inclusion criteria (10 RCTs and one NRS). Participants' ages ranged from 18 to 74 years, and the duration of studies ranged from 24 hours to 104 weeks. Six cross-over studies recruited healthy adults and five parallel studies included either people with pre-existing conditions (three studies) or only pregnant women (two studies). Interventions included masks (e.g. an N95 mask designed to filter out airborne particles) (five studies), an alternative cycle route (one study), air quality alerts and education (five studies). Studies were set in Australia, China, Iran, the UK, and the USA. Due to the diversity of study designs, populations, interventions and outcomes, we did not perform any meta-analyses and instead summarised results narratively. We judged both RCTs and the NRS to be at risk of bias from lack of blinding and lack of clarity regarding selection methods. Many studies did not provide a prepublished protocol or trial registration. From five studies (184 participants), we found that masks or altered cycle routes may have little or no impact on physiological markers of air pollution exposure (e.g. blood pressure and heart rate variability), but we are very uncertain about this estimate using the GRADE approach. We found conflicting evidence regarding health care usage from three studies of air pollution alerts, with one non-randomised cross-over trial (35 participants) reporting an increase in emergency hospital attendances and admissions, but the other two randomised parallel trials (1553 participants) reporting little to no difference. We also gave the evidence for this outcome a very uncertain GRADE rating. None of our included trials reported respiratory exacerbations, quality of life or serious adverse events. Secondary outcomes were not well reported, but indicated inconsistent impacts of air quality alerts and education interventions on adherence, with some trials reporting improvements in the intervention groups and others reporting little or no difference. Symptoms were reported by three trials, with one randomised cross-over trial (15 participants) reporting a small increase in breathing difficulties associated with the mask intervention, one non-randomised cross-over trial (35 participants) reporting reduced throat and nasal irritation in the lower-pollution cycle route group (but no clear difference in other respiratory symptoms), and another randomised parallel trial (519 participants) reporting no clear difference in symptoms between those who received a smog warning and those who did not. AUTHORS' CONCLUSIONS: The lack of evidence and study diversity has limited the conclusions of this review. Using a mask or a lower-pollution cycle route may mitigate some of the physiological impacts from air pollution, but evidence was very uncertain. We found conflicting results for other outcomes, including health care usage, symptoms and adherence/behaviour change. We did not find evidence for adverse events. Funders should consider commissioning larger, longer studies, using high-quality and well-described methods, recruiting participants with pre-existing respiratory conditions. Studies should report outcomes of importance to people with respiratory conditions, such as exacerbations, hospital admissions, quality of life and adverse events
Tailored or adapted interventions for adults with chronic obstructive pulmonary disease and at least one other long-term condition: a mixed methods review
Background
Chronic obstructive pulmonary disease (COPD) is a chronic respiratory condition characterised by shortness of breath, cough and recurrent exacerbations. People with COPD often live with one or more coâexisting longâterm health conditions (comorbidities). People with more severe COPD often have a higher number of comorbidities, putting them at greater risk of morbidity and mortality.
Objectives
To assess the effectiveness of any single intervention for COPD adapted or tailored to their comorbidity(s) compared to any other intervention for people with COPD and one or more common comorbidities (quantitative data, RCTs) in terms of the following outcomes: Quality of life, exacerbations, functional status, allâcause and respiratoryârelated hospital admissions, mortality, pain, and depression and anxiety.
To assess the effectiveness of an adapted or tailored single COPD intervention (simple or complex) that is aimed at changing the management of people with COPD and one or more common comorbidities (quantitative data, RCTs) compared to usual care in terms of the following outcomes: Quality of life, exacerbations, functional status, allâcause and respiratoryârelated hospital admissions, mortality, pain, and depression and anxiety.
To identify emerging themes that describe the views and experiences of patients, carers and healthcare professionals when receiving or providing care to manage multimorbidities (qualitative data).
Search methods
We searched multiple databases including the Cochrane Airways Trials Register, CENTRAL, MEDLINE, Embase, and CINAHL, to identify relevant randomised and qualitative studies. We also searched trial registries and conducted citation searches. The latest search was conducted in January 2021.
Selection criteria
Eligible randomised controlled trials (RCTs) compared a) any single intervention for COPD adapted or tailored to their comorbidity(s) compared to any other intervention, or b) any adapted or tailored single COPD intervention (simple or complex) that is aimed at changing the management of people with COPD and one or more comorbidities, compared to usual care. We included qualitative studies or mixedâmethods studies to identify themes.
Data collection and analysis
We used standard Cochrane methods for analysis of the RCTs. We used Cochrane's risk of bias tool for the RCTs and the CASP checklist for the qualitative studies. We planned to use the Mixed Methods Appraisal tool (MMAT) to assess the risk of bias in mixedâmethods studies, but we found none. We used GRADE and CERQual to assess the quality of the quantitative and qualitative evidence respectively. The primary outcome measures for this review were quality of life and exacerbations.
Main results
Quantitative studies
We included seven studies (1197 participants) in the quantitative analyses, with interventions including telemonitoring, pulmonary rehabilitation, treatment optimisation, waterâbased exercise training and case management. Interventions were either compared with usual care or with an active comparator (such as landâbased exercise training). Duration of trials ranged from 4 to 52 weeks. Mean age of participants ranged from 64 to 72 years and COPD severity ranged from mild to very severe. Trials included either people with COPD and a specific comorbidity (including cardiovascular disease, metabolic syndrome, lung cancer, head or neck cancer, and musculoskeletal conditions), or with one or more comorbidities of any type.
Overall, we judged the evidence presented to be of moderate to very low certainty (GRADE), mainly due to the methodological quality of included trials and imprecision of effect estimates.
Intervention versus usual care
Quality of life as measured by the St George's Respiratory Questionnaire (SGRQ) total score may improve with tailored pulmonary rehabilitation compared to usual care at 52 weeks (mean difference (MD) â10.85, 95% confidence interval (CI) â12.66 to â9.04; 1 study, 70 participants; lowâcertainty evidence). Tailored pulmonary rehabilitation is likely to improve COPD assessment test (CAT) scores compared with usual care at 52 weeks (MD â8.02, 95% CI â9.44 to â6.60; 1 study, 70 participants, moderateâcertainty evidence) and with a multicomponent telehealth intervention at 52 weeks (MD â6.90, 95% CI â9.56 to â4.24; moderateâcertainty evidence). Evidence is uncertain about effects of pharmacotherapy optimisation or telemonitoring interventions on CAT improvement compared with usual care.
There may be little to no difference in the number of people experiencing exacerbations, or mean exacerbations with case management compared with usual care (OR 1.09, 95% CI 0.75 to 1.57; 1 study, 470 participants; very lowâcertainty evidence).
For secondary outcomes, sixâminute walk distance (6MWD) may improve with pulmonary rehabilitation, waterâbased exercise or multicomponent interventions at 38 to 52 weeks (lowâcertainty evidence). A multicomponent intervention may result in fewer people being admitted to hospital at 17 weeks, although there may be little to no difference in a telemonitoring intervention. There may be little to no difference between intervention and usual care for mortality.
Intervention versus active comparator
We included one study comparing waterâbased and landâbased exercise (30 participants). We found no evidence for quality of life or exacerbations.
There may be little to no difference between waterâ and landâbased exercise for 6MWD (MD 5 metres, 95% CI â22 to 32; 38 participants; very lowâcertainty evidence).
Qualitative studies
One nested qualitative study (21 participants) explored perceptions and experiences of people with COPD and longâterm conditions, and of researchers and health professionals who were involved in an RCT of telemonitoring equipment.
Several themes were identified, including health status, beliefs and concerns, reliability of equipment, selfâefficacy, perceived ease of use, factors affecting usefulness and perceived usefulness, attitudes and intention, selfâmanagement and changes in healthcare use. We judged the qualitative evidence presented as of very low certainty overall.
Authors' conclusions
Owing to a paucity of eligible trials, as well as diversity in the intervention type, comorbidities and the outcome measures reported, we were unable to provide a robust synthesis of data. Pulmonary rehabilitation or multicomponent interventions may improve quality of life and functional status (6MWD), but the evidence is too limited to draw a robust conclusion. The key takeâhome message from this review is the lack of data from RCTs on treatments for people living with COPD and comorbidities.
Given the variation in number and type of comorbidity(s) an individual may have, and severity of COPD, larger studies reporting individual patient data are required to determine these effects
Subcutaneous omalizumab for people with asthma
Objectives: This is a protocol for a Cochrane Review (intervention). The objectives are as follows:. To evaluate the effects of subcutaneous omalizumab versus placebo for asthma in adults and children
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