title: Studies on the composition and structure of urinary calculi by infrared spectroscopy, polarizing microscopy and scanning electron microscopy.
mesh_terms: D002129:Calcium Oxalate / Q000032:analysis; D006801:Humans; D007669:Kidney Calculi / Q000378:metabolism*; D008855:Microscopy, Electron, Scanning; D008859:Microscopy, Polarization; D013055:Spectrophotometry, Infrared; D014514:Ureteral Calculi / Q000378:metabolism*; D014527:Uric Acid / Q000032:analysis
chemical_list: D002129:Calcium Oxalate; D014527:Uric Acid