1. Department of Laboratory Medicine, Division of Clinical PharmacologyKarolinska Institutet Sweden
2. Nordic Athlete Passport Management UnitAnti‐Doping Norway Norway
3. Health Sciences, Faculty of Sport and Health SciencesUniversity of Jyväskylä Finland
4. French Doping Control LaboratoryAgence Française de lutte contre le dopage (AFLD) Département des Analyses France
5. Norwegian Doping Control LaboratoryOslo University Hospital Norway
6. The Swedish National Anti‐Doping OrganisationSwedish Sports Confederation Sweden