RT Journal Article SR Electronic T1 Caring for people who inject drugs when they are admitted to hospital JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E423 OP E424 DO 10.1503/cmaj.202124 VO 193 IS 12 A1 Thomas D. Brothers A1 John Fraser A1 Duncan Webster YR 2021 UL http://www.cmaj.ca/content/193/12/E423.abstract