title: Gastrointestinal calcium absorption in nephrolithiasis.
mesh_terms: D000293:Adolescent; D000328:Adult; D000818:Animals; D002118:Calcium / Q000378:metabolism* / Q000652:urine; D002127:Calcium Isotopes; D002128:Calcium Metabolism Disorders / Q000378:metabolism / Q000652:urine; D002136:Calcium, Dietary / Q000378:metabolism*; D006801:Humans; D006961:Hyperparathyroidism / Q000378:metabolism / Q000652:urine; D007408:Intestinal Absorption; D007669:Kidney Calculi / Q000378:metabolism*; D008297:Male; D008875:Middle Aged
chemical_list: D002127:Calcium Isotopes; D002136:Calcium, Dietary; D002118:Calcium