TY - JOUR T1 - A crude approach to evaluating cannabis legalization JF - Canadian Medical Association Journal JO - CMAJ SP - E109 LP - E109 DO - 10.1503/cmaj.71177 VL - 191 IS - 4 AU - Zach Walsh Y1 - 2019/01/28 UR - http://www.cmaj.ca/content/191/4/E109.abstract ER -