title: Studies on gall-stone composition II. Analysis of biliary calculi by x-ray diffraction.
mesh_terms: D002119:Calcium Carbonate / Q000032:analysis; D002769:Cholelithiasis / Q000378:metabolism*; D002784:Cholesterol / Q000032:analysis; D006801:Humans; D014961:X-Ray Diffraction
chemical_list: D002784:Cholesterol; D002119:Calcium Carbonate