1. Specialist Registrar, Obstetrics and Gynaecology North Middlesex University Hospital NHS Trust Sterling Way LondonN18 1QXUK
2. Specialist Registrar, General Surgery Gwent Centre for Digestive Diseases Royal Gwent Hospital NewportNP20 2UBUK
3. Specialist Registrar, Obstetrics and Gynaecology Whipps Cross University HospitalBarts Health NHS Trust LeytonstoneE11 1NRUK
4. Consultant in Upper Gastrointestinal and Biliary Surgery Professor of Surgical Sciences and Technology Gwent Centre for Digestive Diseases Royal Gwent Hospital NewportNP20 2UBUK