Bellissimo, S., Iannone, F., Musio, A., Covelli, M. and Lapadula, G. 2001. Association of systemic sclerosis and psoriatic arthritis: a case report. Reumatismo. 53, 3 (Sep. 2001), 232–234. DOI:https://doi.org/10.4081/reumatismo.2001.232.