1 CT2 Core Medical Trainee, Southend University Hospital NHS Foundation Trust, Essex SS0 0RY.
2 ST3 in Gastroenterology, Southend University Hospital NHS Foundation Trust, Essex SS0 0RY.
3 Consultant Gastroenterologist and Hepatologist in the Department of Gastroenterology, Southend University Hospital NHS Foundation Trust, Essex SS0 0RY.