1. From the Department of Gastroenterology, St.
Richards Hospital Chichester, Chichester, UK;
Department of Gastroenterology, Bristol Royal
Infirmary, Bristol, UK; Research Unit, Department of
Gastroenterology, University of Bath, Bath, UK;
Department of Gastroenterology, Royal United Hospital
Bath, Bath, UK; and Research and Development Support
Unit, Wolfston Unit, University of Bath, Bath, UK.