1. Department of Laboratory Medicine, Division of Clinical Pharmacology, Karolinska Institutet; Karolinska University Hospital; Stockholm Sweden
2. St Michaels Hospital and Clinical Pharmacology and Toxicology Unit; Hospital for Sick Children; Toronto Canada
3. Department of Women's and Children's Health, Karolinska Institutet, and Department of Gynecology and Reproductive Medicine; Karolinska University Hospital; Stockholm Sweden
4. Doping Control Laboratory, Division of Clinical Pharmacology; Karolinska University Hospital; Stockholm Sweden