1 Department of Cardiology, ProCardio Center for Research Based Innovation, Rikshospitalet, Oslo University Hospital, Sognsvannsveien 20, Postbox 4950 Nydalen, 0424 Oslo, Norway.
2 Ïnstitute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.
3 Anabolic Androgenic Steroid Research Group, Section for Clinical Addiction Research, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway.