RT Journal Article SR Electronic T1 In response to both letters JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 92 OP 92 DO 10.7861/clinmedicine.9-1-92a VO 9 IS 1 A1 Brian F Menezes A1 (on behalf of all authors) YR 2009 UL http://www.rcpjournals.org/content/9/1/92.2.abstract