1. Academic Medical Center; Department of Obstetrics and Gynaecology; Meibergdreef 9 Amsterdam Netherlands 1105 AZ
2. School of Medicine, The University of Adelaide; Robinson Research Institute; Adelaide SA Australia 5006
3. The Royal Women's Hospital; The University of Melbourne; Level 7, Research Precinct Melbourne Victoria Australia Parkville 3052
4. Instituto Nacional de Endocrinologia (INEN); Departamento de Salud Reproductiva; Zapata y D Vedado Habana Cuba 10 400
5. Monash University; Department of Obstetrics and Gynaecology; 246 Clayton Road Clayton Victoria Australia 3168
6. The University of Liverpool; Liverpool UK