RT Journal Article SR Electronic T1 Heroin in the hospice: opioids and end-of-life discussions in the 1980s JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1231 OP E1232 DO 10.1503/cmaj.170720 VO 189 IS 39 A1 Richert, Lucas YR 2017 UL http://www.cmaj.ca/content/189/39/E1231.abstract