1. Division of Molecular Biology and Human Genetics; Faculty of Health Sciences; University of Stellenbosch; Cape Town South Africa
2. Foundation for Alcohol Related Research (FARR); Cape Town South Africa
3. International Centre for Reproductive Health; Department of Obstetrics and Gynaecology; University of Ghent; Ghent Belgium
4. Wits Reproductive Health and HIV Research Institute; Faculty of Health Sciences; University of the Witwatersrand; Johannesburg South Africa