| Authors: |
Welsh S; Edinburgh Medical School: Clinical Sciences, University of Edinburgh, Edinburgh, Scotland.; General Surgery and Gastroenterology Department, NHS Greater Glasgow & Clyde, Glasgow, Scotland., Sam Z; Edinburgh Medical School: Clinical Sciences, University of Edinburgh, Edinburgh, Scotland.; General Surgery and Gastroenterology Department, NHS Greater Glasgow & Clyde, Glasgow, Scotland., Seenan JP; General Surgery and Gastroenterology Department, NHS Greater Glasgow & Clyde, Glasgow, Scotland.; Medical School, University of Glasgow, Glasgow, Scotland., Nicholson GA; General Surgery and Gastroenterology Department, NHS Greater Glasgow & Clyde, Glasgow, Scotland.; Medical School, University of Glasgow, Glasgow, Scotland. |