1. Obstetrics and Gynaecology in the Department of Obstetrics and Gynaecology, St Thomas' Hospital, Guys and St Thomas' Hospital Foundation Trust, London
2. St Thomas' Hospital, South London and Maudsley NHS Foundation Trust, London
3. Department of Obstetrics and Gynaecology, St Thomas' Hospital, Guy's and St Thomas' Hospital Foundation Trust, London SE1 7EH