title: Familial selective deficiency of IgA.
mesh_terms: D000328:Adult; D000361:Agammaglobulinemia / Q000235:genetics*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D007136:Immunoglobulins / Q000032:analysis*; D007223:Infant; D008297:Male; D012141:Respiratory Tract Infections / Q000276:immunology
chemical_list: D007070:Immunoglobulin A; D007136:Immunoglobulins