- Correspondence to Dr Colleen GC McGregor, Translational Gastroenterology Unit, NIHR Oxford Biomedical Research Centre, Oxford University Hospitals NHS Foundation Trust, University of Oxford, Oxford OX3 9DU, UK;
- Received January 13, 2021
- Revised February 2, 2021
- Accepted February 3, 2021
- First published February 12, 2021.
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