RT Journal Article SR Electronic T1 Driven to it JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 207 OP 209 DO 10.7861/clinmedicine.12-3-207 VO 12 IS 3 A1 Trudie Roberts YR 2012 UL http://www.rcpjournals.org/content/12/3/207.abstract