Randomised controlled trials in pre-hospital trauma : a systematic mapping review

Acknowledgements The authors thank Paul Manson (HSRU Information Scientist) for help with the database searches, Professor Graeme MacLennan for advice on categorising adaptive design trials, and Professor Marion Campbell for commenting on a draft version of the manuscript. Funding statement RL held an NHS Research Scotland Fellowship during the delivery of this project. The Health Services Research Unit, Institute of Applied Health Sciences (University of Aberdeen), is core-funded by the Chief Scientist Office of the Scottish Government Health and Social Care Directorates. The funders had no involvement in study design, collection, analysis and interpretation of data, reporting or the decision to publish.Peer reviewedPublisher PD