TY - JOUR T1 - Emergency physicians and public health experts call for tight regulations on cannabis edibles and concentrates JF - Canadian Medical Association Journal JO - CMAJ SP - E111 LP - E112 DO - 10.1503/cmaj.109-5703 VL - 191 IS - 4 AU - Sarah Brown Y1 - 2019/01/28 UR - http://www.cmaj.ca/content/191/4/E111.abstract ER -