Azizi S, Elahi M, Dadarkhah A, Shirzadi E, Rezasoltani Z, Abdorrazaghi F. The Effect of Strengthening Exercises of the Hip Extensor and External Rotator Muscles on Patellofemoral Pain Syndrome . JPMRE [Internet]. 2019 Jun. 5 [cited 2024 Apr. 26];1(2):83-90. Available from: https://jpmre.org/index.php/jpmre/article/view/27