title: Polarized and scanning electron microscopy of urinary calculus structure.
mesh_terms: D001031:Apatites / Q000032:analysis; D002129:Calcium Oxalate / Q000032:analysis; D006801:Humans; D008855:Microscopy, Electron, Scanning; D008859:Microscopy, Polarization; D014545:Urinary Calculi / Q000032:analysis / Q000648:ultrastructure*
chemical_list: D001031:Apatites; D002129:Calcium Oxalate