RT Journal Article SR Electronic T1 Horizons in medicine JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 658 OP 658 DO 10.7861/clinmedicine.5-6-658 VO 5 IS 6 A1 Humphrey Hodgson YR 2005 UL http://www.rcpjournals.org/content/5/6/658.1.abstract AB