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Asthma
Bronchial Hyperreactivity
Snoring
Immediate Hypersensitivity
Gastroesophageal Reflux
Sweden
Iceland
Belgium
Prevalence
Seasons
Cross-Sectional Studies
Smoking
Questionnaires
Bronchial Provocation Tests
Skin Tests
Methacholine Chloride
Allergens
Immunoglobulin E
Sleep Disorders
Forced Expiratory Volume
Co-Publications
15
10
8
5
4
3
2
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