No abstract available
Keywords:
Electronic cigarette; Smoking cessation; Smoking reduction; Tobacco harm reduction.
MeSH terms
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Adult
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Electronic Nicotine Delivery Systems / methods
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Electronic Nicotine Delivery Systems / statistics & numerical data*
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Humans
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Male
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Meta-Analysis as Topic
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Risk Reduction Behavior
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Smoking Cessation / methods*
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Smoking Cessation / psychology
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Tobacco Use Cessation Devices / standards*