RT Journal Article SR Electronic T1 Natural health products are subjected to rigorous process prior to market JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1267 OP E1267 DO 10.1503/cmaj.733293 VO 189 IS 40 A1 Laidlaw, Maggie YR 2017 UL http://www.cmaj.ca/content/189/40/E1267.abstract AB