Tocco, Silvio, et al. “Clinical Approach in PIPj Flexion Contracture Conservative Treatment: Our Experience”. Acta Biomedica Atenei Parmensis, vol. 87, no. 1 -S, Apr. 2016, pp. 101-1, https://mattioli1885journals.com/index.php/actabiomedica/article/view/5357.