TY - JOUR T1 - Changes in illicit opioid use across Canada JF - Canadian Medical Association Journal JO - CMAJ SP - 1385 LP - 1385 DO - 10.1503/cmaj.060729 VL - 175 IS - 11 AU - Benedikt Fischer AU - Jürgen Rehm AU - Jayadeep Patra AU - Michelle Firestone Cruz Y1 - 2006/11/21 UR - http://www.cmaj.ca/content/175/11/1385.abstract ER -