1 Amsterdam Collaboration on Health and Safety in Sports & Department of Public and Occupational Health, VU University Medical Center, Amsterdam Movement Sciences, Amsterdam, The Netherlands.
2 Department of Family Medicine and Community Health, University of Minnesota, Minneapolis, Minnesota, USA.
3 Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
4 Sports Medicine Research Center, Neuroscience Institute,Tehran University of Medical Sciences, Tehran, Iran.
5 Department of Public Health, Section for Sports Science, Aarhus University, Aarhus, Denmark.
6 Centre for Clinical Epidemiology and Community, Lady Davis Institute for Medical Research, Jewish General Hospital, McGill University, Montreal, Quebec, Canada.