RT Journal Article SR Electronic T1 Diarrhoeal disease JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 488 OP 491 DO 10.7861/clinmedicine.11-5-488 VO 11 IS 5 A1 Paul Kelly YR 2011 UL http://www.rcpjournals.org/content/11/5/488.abstract