title: T system immune-deficiency in Down's syndrome.
mesh_terms: D000961:Antilymphocyte Serum; D002648:Child; D002904:Chromosomes, Human, 21-22 and Y; D004314:Down Syndrome / Q000150:complications* / Q000276:immunology; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000150:complications*; D007231:Infant, Newborn; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D000961:Antilymphocyte Serum