1. Queen Mary, University of London; Centre for Digestive Diseases, Blizard Institute; Mile End Road London UK E1 4NS
2. Portsmouth Hospitals Trust; Gastroenterology; Queen Alexandra Hospital Spitalfield Road Cosham Hampshire UK PO6 3LY
3. University Hospitals NHS Trust; Gastroenterology; Leicester General Hospital Gwendolen Road Leicester UK LE5 4PW
4. Gloucestershire Royal Hospital; Department of Oesphogastric Surgery; Great Western Road Gloucester Gloucestershire UK GL1 3NN
5. Gloucester Royal Hospital; Surgery; Great Western Road Gloucester UK GL1 3NN
6. Portsmouth Hospitals NHS Trust; Gastroenterology; Queen Alexandra Hospital Cosham Portsmouth UK PO6 3LY
7. Queens Medical Centre, Nottingham University NHS Trust; Wolfson Digestive Diseases Centre; Wolfson Digestive Diseases Centre C Floor, South Block, Queens Medical Centre Nottingham UK NG7 2UH
8. The Lyell McEwin Hospital; Gastroenterology; Haydown Road Elizabeth Vale South Australia Australia 5112
9. Blizard Institute; Centre for Digestive Diseases; QMUL London UK E1 2AD