Affiliation: | 1. Departments of Gastroenterology & Clinical Pharmacology, Christchurch Hospital, Canterbury District Health Board and University of Otago, Christchurch, New Zealand;2. Department of Gastroenterology and Hepatology, AG&M Research Institute, Amsterdam University Medical Centre, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands;3. Department of Biostatistics & Medicine, Christchurch Hospital, Canterbury District Health Board and University of Otago, Christchurch, New Zealand |