[1] Royal Prince Alfred Hosp, Dept Endocrinol, Camperdown, NSW 2050, Australia
[2] Royal Prince Alfred Hosp, ANZAC Res Inst, Camperdown, NSW 2050, Australia
[3] Royal Prince Alfred Hosp, Dept Androl, Camperdown, NSW 2050, Australia
[4] Royal Prince Alfred Hosp, Inst Rheumatol & Orthopaed, Camperdown, NSW 2050, Australia
[5] Concord Hosp, Sydney, NSW, Australia
[6] Univ Sydney, Sydney, NSW 2006, Australia