No abstract available
Publication types
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Letter
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Research Support, Non-U.S. Gov't
MeSH terms
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Adult
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Aged
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Aged, 80 and over
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Case-Control Studies
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China / ethnology
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Chlamydophila Infections / complications*
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Chlamydophila pneumoniae / pathogenicity*
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Chronic Disease
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Female
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Humans
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Immunoglobulin G / analysis
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Lung Neoplasms / epidemiology
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Lung Neoplasms / etiology*
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Lung Neoplasms / microbiology*
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Middle Aged
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Odds Ratio
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Risk Factors
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Singapore / epidemiology
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Smoking / adverse effects