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A Leahy, Clinical Research Fellow, Department of Gastroenterology; Royal Free Hospital, London.
C Clayman, Nurse Practitioner, Department of Gastroenterology; Royal Free Hospital, London.
I Mason, RGN, Nurse Specialist, Department of Gastroenterology; Royal Free Hospital, London.
G Lloyd, Consultant in Psychiatry; Royal Free Hospital, London.
O Epstein, Consultant in Gastroenterology; Royal Free Hospital, London.