RT Journal Article SR Electronic T1 Where there’s smoke, there’s respiratory risk JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E93 OP E94 DO 10.1503/cmaj.109-4976 VO 187 IS 3 A1 Dane Wanniarachige YR 2015 UL http://www.cmaj.ca/content/187/3/E93.abstract