RT Journal Article SR Electronic T1 An emergency response to the opioid overdose crisis in Canada: a regulated opioid distribution program JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E35 OP E36 DO 10.1503/cmaj.171060 VO 190 IS 2 A1 Mark Tyndall YR 2018 UL http://www.cmaj.ca/content/190/2/E35.abstract AB