title: Studies on gall-stone composition. Part I--Analysis of biliary calculi by emission spectroscopy.
mesh_terms: D002769:Cholelithiasis / Q000378:metabolism*; D006801:Humans; D008670:Metals / Q000032:analysis*; D013057:Spectrum Analysis; D014131:Trace Elements / Q000032:analysis*
chemical_list: D008670:Metals; D014131:Trace Elements