No abstract available
Publication types
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Clinical Trial
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Controlled Clinical Trial
MeSH terms
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Absenteeism
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Adenoidectomy*
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Age Factors
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Child
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Child, Preschool
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Clinical Trials as Topic
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Cough / epidemiology
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Female
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Follow-Up Studies
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Gastrointestinal Diseases / epidemiology
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Humans
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Hygiene
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Infections / epidemiology
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Influenza, Human / epidemiology
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Male
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Morbidity*
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Otitis Media / epidemiology
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Pharyngitis / epidemiology
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Postoperative Complications / epidemiology
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Respiratory Tract Infections / epidemiology
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Social Class
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Tonsillectomy*