1. Bradford Teaching Hospitals NHS Trust; Obstetrics and Gynaecology; Duckworth Lane Bradford UK BD9 6RJ
2. Peninsula Medical School; Royal Cornwall Hospital; Truro Cornwall UK TR13LJ
3. University of Adelaide; Obstetrics & Gynaecology, Robinson Institute; Adelaide South Australia Australia 5005
4. The General Infirmary of Leeds; Reproductive Medicine Unit, Clarendon Wing; United Leeds Teaching Hospitals N.H.S. Trust Leeds UK
5. United Leeds Teaching Hospitals; Reproductive Medicine and Surgery; RMU, Clarendon Wing, Leeds general Infirmary Leeds UK LS29NS