F. H. J. FIGGE
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During the fifteen years that have elapsed since the isolation of the carcinogenic substance benzpyrene from coal tar (Cook, Hewett, Hieger1), a relatively large number of substances have been tested for their cancer-producing potentialities. Cook and Kennaway2, 3 surveyed the most important work up until 1938 and listed 860 papers in the bibliography. Over 1,000 compounds have been listed in a recent revision of Hartwell's extensive survey4 of compounds that have been tested for carcinogenicity. Two hundred and sixty-four, or approximately one-fourth of the substances tested, have been shown to induce cancer. In the early part of this work on
FIGGE FHJ. ON THE ETIOLOGY OF CANCER—COCARCINOGENIC AGENTS. Ann Intern Med. 1947;27:143–146. doi: https://doi.org/10.7326/0003-4819-27-1-143
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Published: Ann Intern Med. 1947;27(1):143-146.
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