Fadda, P., L. La Civita, A.L. Zignego, and C. Ferri. “A Clinico-Serological Investigation of Arthritis in Patients With or Without Cryoglobulinemic Syndrome”. Reumatismo 54, no. 4 (December 30, 2002): 316–323. Accessed April 19, 2024. https://www.reumatismo.org/reuma/article/view/reumatismo.2002.316.