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The field of cancer prevention and control includes a broad range of related ideas, methods, and activities; its practitioners, researchers, and teachers come from many disciplines. Its scientific basis is being advanced by increasingly sophisticated analytic techniques. Much greater understanding exists now than ever before of the nature of carcinogenesis and the respective contributions of inherited and environmental factors. As preventive interventions are tested, validated, and introduced into routine clinical practice, psychosocial, ethical, and economic issues are being studied.
Historically, the passage of the National Cancer Act in 1971, the creation of the Division of Cancer Control and Rehabilitation in
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