[Two cases of xanthinuria in brothers].
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007668:Kidney / Q000002:abnormalities*; D007676:Kidney Failure, Chronic / Q000209:etiology; D008297:Male; D008875:Middle Aged; D011686:Purine-Pyrimidine Metabolism, Inborn Errors / Q000235:genetics*; D014970:Xanthines / Q000652:urine*
D014970:Xanthines