RT Journal Article SR Electronic T1 Revision notes for the respiratory medicine specialty certificate examination JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 415 OP 415 DO 10.7861/clinmedicine.13-4-415 VO 13 IS 4 A1 Ind, Philip YR 2013 UL http://www.rcpjournals.org/content/13/4/415.abstract