Pagliari, Micaela, Carlo Raimondo Menna, Andrea Migliorini, and Marco Molinari. 2018. “Atraumatic Acute Bilateral Quadriceps Tendon Rupture in a Patient With Bilateral Patella Spurs. A Case Report and Review of Literature”. Acta Biomedica Atenei Parmensis 90 (1-S):203-8. https://mattioli1885journals.com/index.php/actabiomedica/article/view/8008.