title: Down syndrome: a model of immunodeficiency.
mesh_terms: D000917:Antibody Formation; D001323:Autoantibodies / Q000032:analysis; D002648:Child; D004314:Down Syndrome / Q000209:etiology / Q000276:immunology*; D006801:Humans; D007111:Immunity, Cellular; D007136:Immunoglobulins / Q000032:analysis; D007153:Immunologic Deficiency Syndromes / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology; D013950:Thymus Gland / Q000276:immunology
chemical_list: D001323:Autoantibodies; D007136:Immunoglobulins