Decreasing hospital admissions for childhood asthma in Sweden.
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D000293:Adolescent; D001249:Asthma / Q000209:etiology / Q000534:rehabilitation*; D002648:Child; D002675:Child, Preschool; D006760:Hospitalization; D006801:Humans; D010343:Patient Admission; D018357:Respiratory Syncytial Virus Infections / Q000150:complications / Q000821:virology; D013548:Sweden