title: Familial selective IgA deficiency.
mesh_terms: D000293:Adolescent; D000328:Adult; D000917:Antibody Formation; D001323:Autoantibodies / Q000096:biosynthesis; D002648:Child; D002675:Child, Preschool; D005260:Female; D005799:Genes, Dominant; D005808:Genes, Recessive; D006801:Humans; D006967:Hypersensitivity / Q000209:etiology; D007111:Immunity, Cellular; D005779:Immunodiffusion; D007070:Immunoglobulin A / Q000096:biosynthesis; D007136:Immunoglobulins / Q000096:biosynthesis*; D007153:Immunologic Deficiency Syndromes / Q000150:complications / Q000235:genetics*; D007223:Infant; D008297:Male; D008875:Middle Aged; D010375:Pedigree; D011863:Radioimmunoassay; D012141:Respiratory Tract Infections / Q000276:immunology
chemical_list: D001323:Autoantibodies; D007070:Immunoglobulin A; D007136:Immunoglobulins