RT Journal Article SR Electronic T1 In response JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 195 OP 196 DO 10.7861/clinmedicine.9-2-195a VO 9 IS 2 A1 Saunders John YR 2009 UL http://www.rcpjournals.org/content/9/2/195.2.abstract