title: Polarised light microscopy: principles and practice for the rheumatologist.
mesh_terms: D000368:Aged; D001718:Birefringence; D002131:Calcium Pyrophosphate / Q000032:analysis; D003460:Crystallization; D006073:Gout / Q000378:metabolism; D006801:Humans; D008859:Microscopy, Polarization; D012031:Refractometry; D012216:Rheumatic Diseases / Q000378:metabolism*; D014527:Uric Acid / Q000032:analysis
chemical_list: D014527:Uric Acid; D002131:Calcium Pyrophosphate