RT Journal Article SR Electronic T1 Response JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 208 OP 208 DO 10.7861/clinmedicine.16-2-208 VO 16 IS 2 A1 Benjamin C Whitelaw YR 2016 UL http://www.rcpjournals.org/content/16/2/208.1.abstract