No abstract available
Publication types
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Canada / epidemiology
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Carcinoembryonic Antigen / blood
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Confounding Factors, Epidemiologic
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Humans
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Mass Screening*
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Neoplasms / immunology
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Neoplasms / mortality
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Neoplasms / prevention & control*
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Recurrence
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United States / epidemiology