No abstract available
MeSH terms
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Case-Control Studies
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Evaluation Studies as Topic
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Female
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Humans
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Italy / epidemiology
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Mass Screening / standards
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Risk Factors
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United States / epidemiology
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Uterine Cervical Neoplasms / epidemiology
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Uterine Cervical Neoplasms / etiology*
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Vaginal Smears