RT Journal Article SR Electronic T1 The management of upper gastrointestinal haemorrhage JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 460 OP 464 DO 10.7861/clinmedicine.6-5-460 VO 6 IS 5 A1 Terence Wong YR 2006 UL http://www.rcpjournals.org/content/6/5/460.abstract AB