title: Letter: Possible sources of errors in some physicochemical studies of gallstone formation.
mesh_terms: D001646:Bile / Q000032:analysis; D002118:Calcium / Q000032:analysis; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D002769:Cholelithiasis / Q000473:pathology*; D002784:Cholesterol / Q000032:analysis; D003460:Crystallization
chemical_list: D002784:Cholesterol; D002118:Calcium