1990 |
1985 |
Tell me if you think cigarette smoking definitely increases, probably increases, probably does not, or definitely does not increase a person's chance of the getting the following problems. First --
c. Cancer of the larynx (lar'inks) or voice box?
Tell me if you think CIGARETTE SMOKING definitely increases, probably increases, probably does not, or definitely does not increase a person's chances of getting the following problems.