Gamble, Adam, Jasper, Mark (24) Forbes, Adam (1) Gatward, David J (1) Nichols, Adam (1) Haycock, Adam (consultant Physician & Gastroenterologist, St Mark's Hospital, London, Uk), Cohen, Jonathan (new York University School Of Medicine), Saunders, Brian P. (st. Mark's Hospital, Harrow), Cotton, Peter B. (medical University Of South (1)