1. Division of Surgery; University of Nottingham; Nottingham UK
2. Division of Gastrointestinal Surgery; University of Nottingham; Nottingham UK
3. Medical & Safety Services; ICON Clinical Research; Eastleigh UK
4. Dianthus Medical Limited; London UK
5. Norgine Limited; Uxbridge UK
6. Division of Surgery; Queen's Medical Centre; University Hospital Nottingham; Nottingham UK