Potter, Beatrix (2) Cotton, Peter B (2) Pratt-clarke, Menah (1) Barrie, J. M., Cotton, Katie (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)