title: [Upper urinary tract calculi. An etiological study of patients with renal calculi admitted to Frederiksberg Hospital during a 1-year period].
mesh_terms: D000328:Adult; D000368:Aged; D002118:Calcium / Q000097:blood; D003718:Denmark; D005260:Female; D006801:Humans; D007669:Kidney Calculi / Q000453:epidemiology / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D012008:Recurrence
chemical_list: D002118:Calcium
vernacular_title: En aetiologisk udredning af nyrestenspatienter indlagt på Frederiksberg hospital i en etårig periode.