[Italian Studies on Respiratory Disorders in Children and the Environment. Second phase. Summary].
D000293:Adolescent; D001249:Asthma / Q000453:epidemiology / Q000209:etiology; D002648:Child; D004781:Environmental Exposure / Q000009:adverse effects*; D006306:Health Surveys; D006801:Humans; D006967:Hypersensitivity / Q000453:epidemiology / Q000209:etiology; D007558:Italy / Q000453:epidemiology; D015995:Prevalence; D012140:Respiratory Tract Diseases / Q000453:epidemiology* / Q000209:etiology*; D012307:Risk Factors; D011795:Surveys and Questionnaires