1. The University of Liverpool; Department of Women's and Children's Health; First Floor, Liverpool Women's NHS Foundation Trust Crown Street Liverpool UK L8 7SS
2. The Royal Women's Hospital; The University of Melbourne; Level 7, Research Precinct Melbourne Victoria Australia Parkville 3052
3. Instituto Nacional de Endocrinologia (INEN); Departamento de Salud Reproductiva; Zapata y D Vedado Habana Cuba 10 400