Saeed, Yousaf, and Sayam F. Uddin. “Integrated Evaluation of Heart Rate Variability and Clinical Outcomes in Chronic Heart Failure: Insights into Cardiac Autonomic Dysfunction: Cardiac Autonomic Dysfunction in Chronic Heart Failure”. DEVELOPMENTAL MEDICO-LIFE-SCIENCES, vol. 3, no. 4, Apr. 2026, pp. 4-9, https://doi.org/10.69750/dmls.03.04.0201.