RT Journal Article SR Electronic T1 MRCP(UK) July 2007 JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 650 OP 653 DO 10.7861/clinmedicine.7-6-650 VO 7 IS 6 YR 2007 UL http://www.rcpjournals.org/content/7/6/650.abstract AB