1. University of Auckland; Department of Obstetrics and Gynaecology; FMHS Park Road Grafton Auckland New Zealand 1003
2. Monash University; Monash IVF and Department of O&G; 246 Clayton Rd Melbourne Australia
3. Radboud University Nijmegen Medical Center; Department of Obstetrics and Gynaecology; PO Box 9101 Nijmegen Netherlands 6500 HB