[1] Univ Dundee, Ninewells Hosp, Maternal & Child Hlth Sci Labs, Ctr Oncol & Mol Med, Dundee DD1 9SY, Scotland
[2] Karolinska Univ Hosp, Ctr Androl & Sexual Med, S-14186 Stockholm, Sweden
[3] Karolinska Inst, S-14186 Stockholm, Sweden
[4] Tygerberg Acad Hosp, Androl Lab, Dept Obstet & Gynaecol, ZA-7505 Tygerberg, South Africa
[5] Univ Stellenbosch, ZA-7505 Tygerberg, South Africa
[6] Oozoa Biomed Inc, W Vancouver, BC V7W 3G4, Canada