TY - JOUR T1 - Varenicline: quantifying the risk JF - Canadian Medical Association Journal JO - CMAJ SP - 1404 LP - 1404 DO - 10.1503/cmaj.111-2064 VL - 183 IS - 12 AU - David J. Woods AU - Mark D. Caswell Y1 - 2011/09/06 UR - http://www.cmaj.ca/content/183/12/1404.3.abstract ER -