1. Mediclinic Panorama and Department of Gynecology, University of Stellenbosch, Cape Town, South Africa;
2. National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA;
3. Department of Obstetrics and Gynecology, The University of Virginia Health System, Charlottesville, VA, USA;
4. Endocrinology Department, Hospital Cima, San José, Costa Rica;
5. Reader Emeritus, University of Oxford, UK;
6. Mount Alvernia Hospital, Singapore;
7. University of Geneva, Switzerland