Xanthinuria, an inborn error (or deviation) of metabolism.
D002137:Calculi; D006801:Humans; D011686:Purine-Pyrimidine Metabolism, Inborn Errors; D011687:Purines / Q000378:metabolism*; D014970:Xanthines / Q000652:urine*
D011687:Purines; D014970:Xanthines
CALCULI; PURINES/metabolism; XANTHINES/in urine