KHAN, A.; AHMAD, W.; ASHRAF, S.; RUKHSANA FAROOQI; HUSSAIN AHMAD; WAHAB, A. . Frequency of Obstructive Sleep Apnea in Patients of Chronic Obstructive Pulmonary Disease . Pakistan Journal of Chest Medicine, [S. l.], v. 28, n. 1, p. 54–59, 2022. Disponível em: https://www.pjcm.net/index.php/pjcm/article/view/733. Acesso em: 20 apr. 2026.