1. NHMRC Clinical Trials Centre, University of Sydney , Locked bag 77, Camperdown, NSW 1450 , Australia
2. Andrology Laboratory, ANZAC Research Institute, University of Sydney , Concord, NSW 2139 , Australia
3. Andrology Department, Concord Hospital , Concord, NSW 2139 , Australia
4. Medical School, Keogh Institute for Medical Research, University of Western Australia , Perth, WA 6009 , Australia
5. Department of Endocrinology and Diabetes, Sir Charles Gairdner Hospital , Nedlands, WA 6009 , Australia
6. Medical School, University of Western Australia , Perth, WA 6009 , Australia
7. Department of Endocrinology and Diabetes, Fiona Stanley Hospital , Murdoch, WA 6150 , Australia
8. Diabetes and Endocrinology Department, Princess Alexandra Hospital , Woolloongabba, QLD 4102 , Australia
9. School of Medicine, University of Queensland , St Lucia, QLD 4072 , Australia
10. Department of Endocrinology, Austin Hospital , Heidelberg, VIC 3084 , Australia
11. Department of Medicine, University of Melbourne , Parkville, VIC 3010 , Australia
12. School of Medicine, The University of Adelaide , Adelaide, SA 5005 , Australia
13. Endocrinology Unit, The Queen Elizabeth Hospital , Woodville South, SA 5011 , Australia
14. Centre for Endocrinology and Metabolism, Hudson Institute of Medical Research , Clayton, VIC 3168 , Australia
15. School of Clinical Sciences, Monash University , Clayton, VIC 3800 , Australia
16. Freemasons Centre for Male Health and Wellbeing, South Australian Health Medical Research Institute , Adelaide, SA 5000 , Australia
17. School of Medicine, University of Adelaide , Adelaide, SA 5005 , Australia