Ever since Dr. Ernest L. Wynder championed the view that heavy cigarette smoking is a major cause of lung cancer, he has been challenged to produce the substances in tobacco smoke (or tar) that do the damage. Last week the American Association for Cancer Research, meeting in Atlantic City, took Wynder's word for it that he has now run the number of tobacco-tar fractions capable of causing cancer up to eight, with the end not yet in sight.
Working with Dr. Dietrich Hoffmann at Manhattan's Sloan-Kettering Institute, said Dr. Wynder, he has found in the tar no fewer than 17 hydrogen-carbon compounds...
To continue reading:
or
Log-In
