TY - JOUR T1 - Smokeless tobacco use: "just follow the brown stains on the snow" JF - Canadian Medical Association Journal JO - CMAJ SP - 330 LP - 332 VL - 139 IS - 4 AU - A. Gilmore Y1 - 1988/08/15 UR - http://www.cmaj.ca/content/139/4/330.abstract ER -