title: Barnyard microbes and childhood asthma.
authors.forename: James E
authors.initials: JE
authors.lastname: Gern
mesh_terms: D000383:Agriculture; D001249:Asthma / Q000453:epidemiology* / Q000276:immunology; D001419:Bacteria / Q000302:isolation & purification*; D002648:Child; D004391:Dust / Q000032:analysis; D004781:Environmental Exposure / Q000032:analysis*; D005658:Fungi / Q000302:isolation & purification*; D006801:Humans; D006967:Hypersensitivity / Q000453:epidemiology / Q000276:immunology; D007108:Immune Tolerance; D012307:Risk Factors; D050378:T-Lymphocytes, Regulatory / Q000276:immunology
chemical_list: D004391:Dust