Biscontini, D., E. Bartoloni Bocci, and R. Gerli. “Analysis of Foot Structural Damage in Rheumatoid Arthritis: Clinical Evaluation by Validated Measures and Serological Correlations”. Reumatismo, Vol. 61, no. 1, 1, pp. 48-53, doi:10.4081/reumatismo.2009.48.