Filippini, D., F. Colombo, S. Jann, R. Corneo, and B. Canesi. “Central Nervous System Involvement in Patients With HCV-Related Cryoglobulinemia: Review and a Case Report”. Reumatismo, Vol. 54, no. 2, 1, pp. 150-5, doi:10.4081/reumatismo.2002.150.