title: Response to Fujita.
authors.affiliation: Department of Gastroenterology, St George's University Hospital, London, UK.
authors.forename: Sukhdev
authors.initials: S
authors.lastname: Chatu
authors.affiliation: Department of Gastroenterology, St George's University Hospital, London, UK.
authors.forename: Venkataraman
authors.initials: V
authors.lastname: Subramanian
authors.affiliation: Department of Gastroenterology, St George's University Hospital, London, UK.
authors.forename: Sonia
authors.initials: S
authors.lastname: Saxena
authors.affiliation: Department of Gastroenterology, St George's University Hospital, London, UK.
authors.forename: Richard
authors.initials: R
authors.lastname: Pollok
mesh_terms: D001379:Azathioprine / Q000008:administration & dosage*; D003424:Crohn Disease; D013505:Digestive System Surgical Procedures / Q000706:statistics & numerical data*; D006801:Humans; D015122:Mercaptopurine / Q000008:administration & dosage*
chemical_list: D015122:Mercaptopurine; D001379:Azathioprine