“Diff-Quik® Staining Method for Detection and Identification of Monosodium Urate and Calcium Pyrophosphate Crystals in Synovial Fluids”. Reumatismo 53, no. 4 (December 30, 2001): 305–308. Accessed July 14, 2025. https://www.reumatismo.org/reuma/article/view/reumatismo.2001.305.