Grypiotis, P., Ruffatti, A., Cozzi, F., Sinico, R., Tonello, M., Radice, A., Favaro, M. and Todesco, S. (2003) “Prevalence and clinical significance of cathepsin G antibodies in systemic sclerosis”, Reumatismo, 55(4), pp. 256–262. doi: 10.4081/reumatismo.2003.256.