Olivieri, I., S. D’Angelo, C. Palazzi, P. Leccese, A. Nigro, and A. Padula. “Anti-TNF Agents for the Treatment of Active Non-Radiographic Axial Spondyloarthritis”. Reumatismo, vol. 65, no. 1, Mar. 2013, pp. 1-3, doi:10.4081/reumatismo.2013.1.