TY - JOUR T1 - Marijuana smoke hazardous, says CMA, plus more news from the annual meeting JF - Canadian Medical Association Journal JO - CMAJ SP - E517 LP - E518 DO - 10.1503/cmaj.109-4882 VL - 186 IS - 14 AU - Barbara Sibbald Y1 - 2014/10/07 UR - http://www.cmaj.ca/content/186/14/E517.abstract N2 - ER -