RT Journal Article SR Electronic T1 Public health experts urge realistic pot laws JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1073 OP 1073 DO 10.1503/cmaj.109-5329 VO 188 IS 15 A1 Lauren Vogel YR 2016 UL http://www.cmaj.ca/content/188/15/1073.abstract