title: Composition and structure of urinary stone.
mesh_terms: D001031:Apatites / Q000032:analysis; D002118:Calcium / Q000032:analysis; D003461:Crystallography; D003553:Cystine / Q000032:analysis; D006801:Humans; D008274:Magnesium / Q000032:analysis; D008859:Microscopy, Polarization; D010070:Oxalates / Q000032:analysis; D010710:Phosphates / Q000032:analysis; D012822:Silicon Dioxide / Q000032:analysis; D014527:Uric Acid / Q000032:analysis; D014545:Urinary Calculi / Q000378:metabolism*; D014961:X-Ray Diffraction; D014970:Xanthines / Q000032:analysis
chemical_list: D001031:Apatites; D010070:Oxalates; D010710:Phosphates; D014970:Xanthines; D014527:Uric Acid; D003553:Cystine; D012822:Silicon Dioxide; D008274:Magnesium; D002118:Calcium