RT Journal Article SR Electronic T1 Clinical Medicine January/February 2005 JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 226 OP 226 DO 10.7861/clinmedicine.5-3-226 VO 5 IS 3 A2 Peter Watkins YR 2005 UL http://www.rcpjournals.org/content/5/3/226.abstract AB