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Referenced Documents
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NEW RESEARCH WORK RAISES QUESTIONS ABOUT ORIGINS, TYPES OF LUNG CANCER. FIND MOST CANCERS START IN PERIPHERY OF BRONCHIAL TREE, NOT IN MAIN BRONCHI. PRIMARY LUNG CANCERS FOUND IN STUDY OF NUNS. STUDY SHOWS DECLINE IN EPIDERMOID CANCER FREQUENCY IN MALES. STUDY QUESTIONS ACCURACY OF DEATH CERTIFICATES. REPORT BY LITTLE CITES NEW TESTS, HUMAN TYPES TUMORS IN ANIMALS. STUDY FINDS CANCERS ARISE IN LUNG SCARS. 1957 (570000) PUBLIC HEALTH SERVICE REPORT. 1961 (610000) ANNUAL REPORT OF THE SCIENTIFIC DIRECTOR OF THE TOBACCO INDUSTRY RESEARCH COMM. LIST OF FOOTNOTES. SCIENTISTS REPORT...HUMAN VIRUS INDUCES ANIMAL LUNG CANCERS. STUDY OF 163 U.S. AREAS SHOWS...LUNG CANCER DEATH RATES VARY WIDELY. CHEST SPECIALIST SAYS...BASIC CANCER DATA BEING OBSCURED. ""COMPETING RISKS""...DISEASES HAVE MORE THAN ONE CAUSE.
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