RT Journal Article SR Electronic T1 Response JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 92 OP 92 DO 10.7861/clinmedicine.14-1-92a VO 14 IS 1 A1 Samuel Littlejohns A1 Peter Littlejohns A1 Judith Richardson A1 Alistair Robertson YR 2014 UL http://www.rcpjournals.org/content/14/1/92.2.abstract