RT Journal Article SR Electronic T1 Cytisine for smoking cessation JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E596 OP E596 DO 10.1503/cmaj.171371 VO 190 IS 19 A1 Taleen Karnieg A1 Xiang Wang YR 2018 UL http://www.cmaj.ca/content/190/19/E596.abstract