Iagnocco, A., Perella, C., Ceccarelli, F., Tripodo, E., Alessandri, C., Magrini, L. and Valesini, G. (2006) “Ultrasonographic assessment of the response to Etanercept treatment in patients with rheumatoid arthritis”, Reumatismo, 58(3), pp. 233–238. doi: 10.4081/reumatismo.2006.233.