%0 Journal Article %A Scott T. Leatherdale %A Rashid Ahmed %A Murray Kaiserman %T Marijuana use by tobacco smokers and nonsmokers: Who is smoking what? %D 2006 %R 10.1503/cmaj.051614 %J Canadian Medical Association Journal %P 1399-1399 %V 174 %N 10 %U https://www.cmaj.ca/content/cmaj/174/10/1399.full.pdf