TY - JOUR T1 - What are the long-term effects of smoked marijuana on lung health? JF - Canadian Medical Association Journal JO - CMAJ SP - E1243 LP - E1244 DO - 10.1503/cmaj.181307 VL - 190 IS - 42 AU - Wan C. Tan AU - Don D. Sin Y1 - 2018/10/22 UR - http://www.cmaj.ca/content/190/42/E1243.abstract ER -