RT Journal Article SR Electronic T1 Use of OxyContin by adolescent students JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1303 OP 1303 DO 10.1503/cmaj.1060037 VO 174 IS 9 A1 Edward M. Adlaf A1 Angela Paglia-Boak A1 Bruna Brands YR 2006 UL http://www.cmaj.ca/content/174/9/1303.1.abstract