RT Journal Article SR Electronic T1 Optimism for prison syringe programs JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E249 OP E249 DO 10.1503/cmaj.109-5294 VO 188 IS 11 A1 Roger Collier YR 2016 UL http://www.cmaj.ca/content/188/11/E249.abstract