MINNEAPOLIS, Jan. 2 (UPI) -- A carcinogenic chemical in tobacco products was found in toenails of smokers and non-smokers exposed to secondhand smoke, U.S. cancer researchers said.>>> Discuss This Story
MINNEAPOLIS, Jan. 2 (UPI) -- A carcinogenic chemical in tobacco products was found in toenails of smokers and non-smokers exposed to secondhand smoke, U.S. cancer researchers said.>>> Discuss This Story
