S. Bello, C. Bonali, L. Serafino, P. Di Giuseppe, A. Minosi, and N. Terlizzi, “Intra-articular therapy with infliximab in psoriatic arthritis: efficacy and safety in refractory monoarthritis”, Reumatismo, vol. 62, no. 1, pp. 46–50, Mar. 2010.