1. Swiss Laboratory for Doping Analysis; University Center of Legal Medicine, Geneva and Lausanne, Centre Hospitalier Universitaire Vaudois and University Lausanne; Ch. des Croisettes 22; CH-1066; Epalinges; Switzerland
2. German Sport University Cologne; Center for Preventive Doping Research; Am Sportpark Müngersdorf 6; 50933; Köln; Germany