A case-control study proving an association between heavy prolonged cigarette smoking and bronchogenic carcinoma. See also the following paper on pp. 336-38. Reprinted in J. Amer. med. Assoc. 1985, 253, 2986-97.
A case-control study proving an association between heavy prolonged cigarette smoking and bronchogenic carcinoma. See also the following paper on pp. 336-38. Reprinted in J. Amer. med. Assoc. 1985, 253, 2986-97.