RT Journal Article SR Electronic T1 Trade and public health JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E879 OP E880 DO 10.1503/cmaj.170089 VO 189 IS 26 A1 Schram, Ashley A1 Labonté, Ronald YR 2017 UL http://www.cmaj.ca/content/189/26/E879.abstract AB