title: Recurrence following operative treatment of upper urinary tract stone.
mesh_terms: D002118:Calcium / Q000652:urine; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006961:Hyperparathyroidism / Q000150:complications; D008297:Male; D012008:Recurrence; D013997:Time Factors; D014545:Urinary Calculi / Q000150:complications / Q000601:surgery*
chemical_list: D002118:Calcium