title: [A study of the relation between radioactive material in gallstones and primary carcinoma of gallbladder].
mesh_terms: D002769:Cholelithiasis / Q000378:metabolism*; D005706:Gallbladder Neoplasms / Q000209:etiology*; D006801:Humans; D009381:Neoplasms, Radiation-Induced; D011868:Radioisotopes / Q000032:analysis; D014131:Trace Elements / Q000032:analysis
chemical_list: D011868:Radioisotopes; D014131:Trace Elements