RT Journal Article SR Electronic T1 Kratom JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1105 OP E1105 DO 10.1503/cmaj.190470 VO 191 IS 40 A1 Mark Sanderson A1 Adrianna Rowe YR 2019 UL http://www.cmaj.ca/content/191/40/E1105.abstract