title: The composition of gall stones.
mesh_terms: D001646:Bile / Q000032:analysis*; D001647:Bile Acids and Salts / Q000032:analysis; D002118:Calcium / Q000032:analysis; D002769:Cholelithiasis / Q000209:etiology*; D006801:Humans; D007259:Infrared Rays; D011506:Proteins / Q000032:analysis; D013057:Spectrum Analysis
chemical_list: D001647:Bile Acids and Salts; D011506:Proteins; D002118:Calcium