Cipriano, E., F. Ceccarelli, L. Massaro, F. R. Spinelli, C. Alessandri, C. Perricone, G. Valesini, and F. Conti. 2015. “Joint Involvement in Patients Affected by Systemic Lupus Erythematosus: Application of the Swollen to Tender Joint Count Ratio”. Reumatismo 67 (2), 62-67. https://doi.org/10.4081/reumatismo.2015.828.