RT Journal Article SR Electronic T1 Harm reduction is about providing safety for patients JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1154 OP E1154 DO 10.1503/cmaj.1095489 VO 189 IS 36 A1 Roger Collier YR 2017 UL http://www.cmaj.ca/content/189/36/E1154.abstract