Özlü, İ., Öztürk, Z., Karaman Özlü, Z., Tekin, E., & Gür, A. (2021). The effects of progressive muscle relaxation exercises on the anxiety and sleep quality of patients with COVID‐19: A randomized controlled study. Perspect Psychiatr Care.

Özlü, İbrahim, Zeynep Öztürk, Zeynep Karaman Özlü, Erdal Tekin, and Ali Gür. "The Effects of Progressive Muscle Relaxation Exercises On the Anxiety and Sleep Quality of Patients With COVID‐19: A Randomized Controlled Study." Perspect Psychiatr Care 2021.

Özlü, İbrahim, et al. "The Effects of Progressive Muscle Relaxation Exercises On the Anxiety and Sleep Quality of Patients With COVID‐19: A Randomized Controlled Study." Perspect Psychiatr Care 2021.