title: Clinicobiochemical analysis of four cases of xanthine oxidase deficiency.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011686:Purine-Pyrimidine Metabolism, Inborn Errors / Q000175:diagnosis*; D014527:Uric Acid / Q000097:blood / Q000652:urine; D019820:Xanthine; D014969:Xanthine Oxidase / Q000172:deficiency*; D014970:Xanthines / Q000652:urine
chemical_list: D014970:Xanthines; D019820:Xanthine; D014527:Uric Acid; D014969:Xanthine Oxidase