title: Quantitative determination of chemical composition of gallstones by infrared absorption spectrophotometry.
mesh_terms: D001663:Bilirubin / Q000032:analysis; D002118:Calcium / Q000032:analysis*; D002119:Calcium Carbonate / Q000032:analysis; D002130:Calcium Phosphates / Q000032:analysis; D002769:Cholelithiasis / Q000378:metabolism*; D002784:Cholesterol / Q000032:analysis*; D006801:Humans; D013055:Spectrophotometry, Infrared; D013229:Stearic Acids / Q000032:analysis
chemical_list: D002130:Calcium Phosphates; D013229:Stearic Acids; C031183:stearic acid; D002784:Cholesterol; D002119:Calcium Carbonate; D001663:Bilirubin; D002118:Calcium