Yu, N., F. Cheng, and L. Xiao et al. 2011. “Synovial Sarcoma of the Foot Enlightening Etiology: A Case Report”. Acta Biomedica Atenei Parmensis 81 (3): 230-32. https://mattioli1885journals.com/index.php/actabiomedica/article/view/802.