title: The magnesium:calcium ratio in the concentrated urines of patients with calcium oxalate calculi.
mesh_terms: D000328:Adult; D002118:Calcium / Q000378:metabolism / Q000652:urine*; D006801:Humans; D007671:Kidney Concentrating Ability; D008274:Magnesium / Q000652:urine*; D008297:Male; D008875:Middle Aged; D009994:Osmolar Concentration; D010070:Oxalates / Q000378:metabolism; D014545:Urinary Calculi / Q000209:etiology / Q000652:urine*
chemical_list: D010070:Oxalates; D008274:Magnesium; D002118:Calcium