RT Journal Article SR Electronic T1 It’s time to allow assisted injection in supervised injection sites JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1083 OP E1084 DO 10.1503/cmaj.170659 VO 189 IS 34 A1 Marilou Gagnon YR 2017 UL http://www.cmaj.ca/content/189/34/E1083.abstract AB