RT Journal Article SR Electronic T1 Rethinking “doing well” on chronic opioid therapy JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1222 OP E1223 DO 10.1503/cmaj.170628 VO 189 IS 39 A1 David N. Juurlink YR 2017 UL http://www.cmaj.ca/content/189/39/E1222.abstract AB