Kessel, A., I. Rosner, E. Zuckerman, T.D. Golan, and E. Toubi. “Use of Antikeratin Antibodies to Distinguish Between Rheumatoid Arthritis and Polyarthritis Associated With Hepatitis C Infection”. Reumatismo 53, no. 2 (June 30, 2001): 156–157. Accessed April 24, 2024. https://www.reumatismo.org/reuma/article/view/reumatismo.2001.156.