title: Powder diffraction analysis of urinary calculi: the advantages of using a cobalt x-ray tube.
mesh_terms: D003037:Cobalt Radioisotopes; D006801:Humans; D014545:Urinary Calculi / Q000378:metabolism*; D014961:X-Ray Diffraction / Q000379:methods*
chemical_list: D003037:Cobalt Radioisotopes