1. Department of Obstetrics and Gynecology, Center for Molecular Medicine and Genetics, Institute for Scientific Computing, Wayne State University School of Medicine 275 E. Hancock Detroit Michigan USA
2. Center for Reproductive Medicine, Academic Medical Center, University of Amsterdam Meibergdreef 9 1105 AZ Amsterdam the Netherlands
3. Department of Endocrinology and Metabolism, Faculty of Science, Utrecht University 3584 CH Utrecht the Netherlands
4. Centre for Reproduction and Development, Monash Institute of Medical Research, Monash University 27–31 Wright Street Clayton Victoria Australia