TY - JOUR T1 - Youth substance use and abuse: challenges and strategies for identification and intervention JF - Canadian Medical Association Journal JO - CMAJ SP - 145 LP - 148 DO - 10.1503/cmaj.071410 VL - 178 IS - 2 AU - Karen Leslie MD Y1 - 2008/01/15 UR - http://www.cmaj.ca/content/178/2/145.abstract ER -