An early diagnosis is not the same as a timely diagnosis of Parkinson's disease

referee-status: Indexed referee-response-35490: 10.5256/f1000research.15815.r35490, Matthew J. Farrer, Djavad Mowafhagian Centre for Brain, University of British Columbia, Vancouver, British Columbia, Canada, 18 Jul 2018, version 1, indexed referee-response-35489: 10.5256/f1000research.15815.r35489, Mayela Rodriguez-Violante, Movement Disorders Clinic, National Institute of Neurology and Neurosurgery, Mexico City, Mexico, 18 Jul 2018, version 1, indexed grant-information: This review was supported by grants from: Parkinson’s UK (G-1606), National Institute for Health Research University College Hospitals Biomedical Research Centre and Bart’s Charity (Preventative Neurology Grant). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. copyright-info: This is an open access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.This review was supported by grants from: Parkinson’s UK (G-1606), National Institute for Health Research University College Hospitals Biomedical Research Centre and Bart’s Charity (Preventative Neurology Grant)