Lubis, A.C., Yuke Sarastri, Cut Aryfa Andra, Nadiah Masyab and Hana Fauziyah 2025. Obstructive Sleep Apnea in Patients with Heart Failure and Atrial Fibrillation. Sumatera Medical Journal. 8, 3 (Sep. 2025), 158–161. DOI:https://doi.org/10.32734/sumej.v8i3.16701.