Ramazzina, Ileana, Francesco Pogliacomi, Silvia Bertuletti, and Cosimo Costantino. “Long Term Effect of Selective Muscle Strengthening in Athletes With Patellofemoral Pain Syndrome”. Acta Biomedica Atenei Parmensis 87, no. 1 -S (April 15, 2016): 60–68. Accessed July 18, 2024. https://mattioli1885journals.com/index.php/actabiomedica/article/view/5351.