- Correspondence to Nigel J Trudgill, Department of Gastroenterology Sandwell General Hospital Lyndon West Bromwich B71 4HJ, UK;
- Received April 4, 2018
- Revised November 25, 2018
- Accepted November 30, 2018
- First published January 3, 2019.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.