%0 Journal Article %A J. Taylor Hays %T Varenicline for smoking cessation: Is it a heartbreaker? %D 2011 %R 10.1503/cmaj.110804 %J Canadian Medical Association Journal %P 1346-1347 %V 183 %N 12 %U https://www.cmaj.ca/content/cmaj/183/12/1346.full.pdf