[1] Univ Basel Hosp, Div Endocrinol & Diabetol, CH-4031 Basel, Switzerland
[2] St Vincents Hosp, Garvan Inst Med Res, Bone & Mineral Res Program, Sydney, NSW 2010, Australia
[3] Univ New S Wales, Sydney, NSW, Australia
[4] Univ Sydney, ANZAC Res Inst, Dept Androl, Sydney, NSW 2006, Australia
[5] Univ Sydney, ANZAC Res Inst, Bone Res Program, Sydney, NSW 2006, Australia