No abstract available
MeSH terms
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Adolescent
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Age Distribution
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Bronchial Diseases / epidemiology
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Bronchial Diseases / etiology
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Europe / epidemiology
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Female
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Humans
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Lung Diseases / epidemiology
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Lung Diseases / etiology
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Male
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Morbidity / trends
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Prevalence
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Romania / epidemiology
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Sex Distribution
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Smoking / adverse effects
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Smoking / epidemiology*