1. Derriford Hospital; Peninsula Foundation Deanery; 36 Elm Road Mannamead Plymouth UK
2. University of Oxford; Nuffield Department of Obstetrics and Gynaecology; John Radcliffe Hospital Headington Oxford UK OX3 9DU
3. John Radcliffe Hospital; Nuffield Dept of Obstetrics & Gynaecology; level 3, Women's Centre Headington Oxford UK OX3 7RG
4. Rosie Maternity Hospital; Department of Obstetrics and Gynaecology; Robinson Way Cambridge UK CB2 2SW