Affiliations

• ¹ Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, Tyne and Wear, UK.
• ² Gastroenterology, Portsmouth Hospitals NHS Trust, Portsmouth, Hampshire, UK.
• ³ Behavioural Science and Health, University College London, London, UK.
• ⁴ Endoscopy, South Tyneside General Hospital, South Shields, UK.
• ⁵ Health Services Research Unit, Oxford University, Oxford, UK.
• ⁶ Oesophagogastric Surgery, Gloucestershire Royal Hospital, Birmingham, UK.
• ⁷ Gastroenterology, Leeds Teaching Hospitals NHS Trust, Leeds, UK.
• ⁸ Wye Valley NHS Trust, Wye Valley, UK.
• ⁹ HPB Unit, Freeman Hospital, Newcastle upon Tyne, UK.
• ¹⁰ Department of Gastroenterology, Northern General Hospital, Sheffield, UK.
• ¹¹ General Surgery, Royal Surrey County Hospital NHS Foundation Trust, Guilford, Surrey, UK.
• ¹² Wolfson Unit for Endoscopy, St. Mark's Hospital, London, UK.
• ¹³ Gastroenterology, North Tees and Hartlepool NHS Foundation Trust, Stockton, Teesside, UK roisinbevan@hotmail.com.