Erol Ursavas, Figen, and Meryem Catakli. 2021. “The Effect of Diaphragmatic Breathing Exercise on Pain, Anxiety, and Depression in Patients Undergoing Total Knee Replacement: A Randomized Controlled Trial”. Annals of Medical Research 27 (9):2408-13. http://annalsmedres.org/index.php/aomr/article/view/934.