Nurhakim, L., Najirman, and E. Kurniawan. “Diagnostic Accuracy of Ultrasonography and Conventional Radiography for Calcium Pyrophosphate Deposition Disease Against Crystal-Proven Reference Standards: A Systematic Review and Meta-Analysis”. Sriwijaya Journal of Internal Medicine, Vol. 4, no. 2, Oct. 2026, pp. 214-29, doi:10.59345/sjim.v4i2.374.