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Sweden
Finland
Asthma
Pulmonary Disease, Chronic Obstructive
Respiratory Sounds
Hypersensitivity
Bronchitis
Prevalence
Risk Factors
Cohort Studies
Cross-Sectional Studies
Multivariate Analysis
Sex Factors
Age Distribution
Incidence
Smoking
Questionnaires
Forced Expiratory Volume
Young Adult
Skin Tests
Co-Publications
58
13
11
9
8
7
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