RT Journal Article SR Electronic T1 Joy's index JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 527 OP 528 DO 10.7861/clinmedicine.10-5-527 VO 10 IS 5 A1 Coemgenus YR 2010 UL http://www.rcpjournals.org/content/10/5/527.abstract