T Mitchell
Gastroenterology Unit, Warrington General Hospital, Cheshire, UK
E Christie
Gastroenterology Unit, Warrington General Hospital, Cheshire, UK
Habib Syed
Gastroenterology Unit, Llandudno General Hospital, North Wales, UK
A Koulaouzidis
Gastroenterology Unit, Warrington General Hospital, Cheshire, UK
W C Tan
Gastroenterology Unit, Warrington General Hospital, Cheshire, UK