title: Asthma, IgA deficiency, and respiratory infections.
mesh_terms: D001249:Asthma / Q000150:complications* / Q000276:immunology; D002675:Child, Preschool; D004406:Dysgammaglobulinemia / Q000150:complications* / Q000276:immunology; D006801:Humans; D007070:Immunoglobulin A; D007153:Immunologic Deficiency Syndromes / Q000150:complications*; D008297:Male; D012141:Respiratory Tract Infections / Q000150:complications* / Q000276:immunology
chemical_list: D007070:Immunoglobulin A