Validated classification criteria for calcium pyrophosphate deposition (CPPD) disease

Calcium pyrophosphate deposition (CPPD) disease is a common, symptomatic arthritis, but until now there have been there are no validated classification criteria. This has hampered research in this common disease that becomes more frequent with increasing age.
Calcium pyrophosphate deposition (CPPD) disease is a common, symptomatic arthritis, but until now there have been there are no validated classification criteria. This has hampered research in this common disease that becomes more frequent with increasing age.