Walid Ahmed Kamal, Mahmood Saber, Khalid Aiad, Mohamed Serag Eldein Mahgoub Mostafa, Wagdy William Younan, Samah Saad Zahran. “High-Power Laser Versus Phonophoresis in Subacromial Impingement Syndrome: Randomized Controlled Trial”. Annals of the Romanian Society for Cell Biology, Mar. 2021, pp. 342-54, https://annalsofrscb.ro/index.php/journal/article/view/1512.