Masyab, Nadiah, Anggia Chairuddin Lubis, and Abdul Halim Raynaldo. “Factors Related to Obstructive Sleep Apnea in Patients With Heart Failure and Atrial Fibrillation”. Journal of Society Medicine 4, no. 4 (April 30, 2025): 138–145. Accessed June 2, 2026. https://www.jsocmed.org/go/article/view/207.