- Correspondence to Dr Aamir Saifuddin, Department of Gastroenterology, Tunbridge Wells Hospital, Maidstone and Tunbridge Wells NHS Trust, Kent TN2 4QJ, UK;
- Received 22 August 2017
- Revised 15 November 2017
- Accepted 19 November 2017
- Published online 11 December 2017.
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