TY - JOUR T1 - Alcohol and drug use among teenagers JF - Canadian Medical Association Journal JO - CMAJ SP - 149 LP - 149 DO - 10.1503/cmaj.071622 VL - 178 IS - 2 AU - Karen Leslie MD Y1 - 2008/01/15 UR - http://www.cmaj.ca/content/178/2/149.abstract ER -