Cancer of the lung was formerly considered rare, but in the last 20 years it has increased steadily, not only in the U. S., but in Canada, England, Germany. Before he died last June, Dr. Philip B. Matz, U. S. Veterans' Administration research chief, examined 138 clinical and post-mortem records from the veterans' hospitals to find out where lung cancer came from and how long it was going to be here.
Fortnight ago the Journal of the A. M. A. printed Dr. Matz's conclusions. He found that: 1) almost 40% of the cancer victims had...
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