No abstract available
Publication types
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
MeSH terms
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Adolescent
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Adult
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Aged
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Aged, 80 and over
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Analysis of Variance
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Drug Delivery Systems / statistics & numerical data*
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Electronics
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Follow-Up Studies
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Humans
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Longitudinal Studies
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Middle Aged
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Nicotine / administration & dosage*
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Regression Analysis
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Smoking Cessation / methods*
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Smoking Cessation / statistics & numerical data
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Smoking*
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Tobacco Use Cessation Devices / statistics & numerical data*