title: [A methodological study on the analysis of x-ray images from the electron microprobe x-ray analyzer (2). Compositional zoning of human salivary calculus by computer-aided micro-analyzer (CMA)].
mesh_terms: D002118:Calcium / Q000032:analysis; D003201:Computers; D004577:Electron Probe Microanalysis; D006801:Humans; D011859:Radiography; D012465:Salivary Duct Calculi / Q000000981:diagnostic imaging / Q000378:metabolism*; D013440:Sulfides / Q000032:analysis
chemical_list: D013440:Sulfides; D002118:Calcium