RT Journal Article SR Electronic T1 Ketamine for the treatment of acute pain JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1663 OP E1663 DO 10.1503/cmaj.210878 VO 193 IS 43 A1 Silverstein, William K. A1 Juurlink, David N. A1 Zipursky, Jonathan S. YR 2021 UL http://www.cmaj.ca/content/193/43/E1663.abstract