- Correspondence to Professor Alexander Charles Ford, Leeds Gastroenterology Institute, St. James's University Hospital, Leeds LS9 7TF, UK;
- Received February 6, 2020
- Revised February 26, 2020
- Accepted March 9, 2020
- First published March 23, 2020.
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.