RT Journal Article SR Electronic T1 The authors respond to “The 2017 Canadian opioid guideline: already time for an overhaul” JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E301 OP E301 DO 10.1503/cmaj.68675 VO 190 IS 10 A1 Busse, Jason W. A1 Juurlink, David A1 Buckley, D. Norman A1 Guyatt, Gordon H. YR 2018 UL http://www.cmaj.ca/content/190/10/E301.abstract AB