Radjabova G, Nazarova J, Rakhmatova S, and Ubaydullaeva N. “CHARACTERISTIC OF SLEEP APNEA SYNDROME IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY ILLNESS”. International Engineering Journal For Research & Development 6, no. 1 (January 14, 2021): 4. Accessed April 17, 2026. https://iejrd.com/index.php/iejrd/article/view/1488.