Punzi, L., M. Poswiadek, F. Oliviero, A. Lonigro, V. Modesti, R. Ramonda, and S. Todesco. “LABORATORY FINDINGS IN PSORIATIC ARTHRITIS”. Reumatismo 59, no. 1s (1): 52-55. Accessed July 6, 2020. https://www.reumatismo.org/index.php/reuma/article/view/reumatismo.2007.1s.52.