RT Journal Article SR Electronic T1 Smoking cessation trials JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1037 OP 1038 DO 10.1503/cmaj.1080096 VO 179 IS 10 A1 John R. Polito, JD YR 2008 UL http://www.cmaj.ca/content/179/10/1037.2.abstract