title: Combined IgA and alpha-1-antitrypsin deficiency in a boy with severe respiratory tract infections and asthma.
mesh_terms: D001249:Asthma / Q000150:complications / Q000276:immunology*; D001987:Bronchiectasis / Q000150:complications; D002675:Child, Preschool; D004406:Dysgammaglobulinemia / Q000150:complications*; D006801:Humans; D017098:IgA Deficiency; D008297:Male; D010641:Phenotype; D011656:Pulmonary Emphysema / Q000150:complications; D012141:Respiratory Tract Infections / Q000150:complications / Q000276:immunology*; D019896:alpha 1-Antitrypsin Deficiency