Swiss Laboratory for Doping Analyses, University Center of Legal Medicine, Lausanne and Geneva, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Switzerland. Anti-Doping Lab Qatar, Sports City Road, Sports City, P.O. Box 27775, Doha, Qatar. Transfusion interrégionale CRS, site d'Epalinges, Switzerland. Department of Ambulatory Care and Community Medicine, University of Lausanne, Lausanne, Switzerland. Athlete Health and Performance Centre, Aspetar Orthopaedic and Sports Medicine Hospital Doha, Qatar.