- Correspondence to Dr Anjan Dhar, Departments of Gastroenterology, County Durham & Darlington NHS Foundation Trust, Darlington Memorial & Bishop Auckland Hospitals, Cockton Hill Road, Co. Durham DL14 6AD, UK;
- Received December 2, 2015
- Revised June 13, 2016
- Accepted June 27, 2016
- First published July 19, 2016.
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