1. University of Southampton; Obstetrics and Gynaecology; Level F, Princess Anne Hospital Coxford Road Southampton UK SO16 5YA
2. St Bartholomew's Hospital; Centre for Reproductive Medicine; Little Britain London UK EC1A 7BE
3. The Aga Khan University; Department of Obstetrics & Gynaecology; PO Box 30270-00100 GPO Nairobi Kenya SO16 5YA