RT Journal Article SR Electronic T1 Health minister ends special access to prescription heroin JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E773 OP E774 DO 10.1503/cmaj.109-4626 VO 185 IS 17 A1 Laura Eggertson YR 2013 UL http://www.cmaj.ca/content/185/17/E773.abstract AB