title: Cellular immune deficiency in two siblings with hereditary orotic aciduria.
mesh_terms: D002648:Child; D002675:Child, Preschool; D006801:Humans; D007111:Immunity, Cellular; D007153:Immunologic Deficiency Syndromes / Q000209:etiology* / Q000235:genetics / Q000276:immunology; D008297:Male; D009963:Orotic Acid / Q000652:urine*; D011686:Purine-Pyrimidine Metabolism, Inborn Errors / Q000150:complications / Q000235:genetics* / Q000276:immunology
chemical_list: D009963:Orotic Acid