Affiliation: | 1. Purine Research Laboratory, Department of Chemical Pathology, Guy’s Hospital, London, SE1 9RT, UK;2. Department of Gastroenterology, Guy’s and St. Thomas’ Hospitals;3. Department of Paediatrics, Neonatology and Congenital Disorders, Nagoya City University, Nagoya, Japan;4. School of Pharmacy, University of Queensland, and Department of Pathology, Mater Hospital, Brisbane, Australia |