Araç, S., M. Z. Karahan, M. Özel, R. Yiğit, H. Akkoç, and E. Araç. “Effects of Treatment With Hydroxychloroquine and Azithromycin on the Index of Cardiac Electrophysiological Balance in Patients With COVID-19: A Retrospective Cohort Study”. Journal of Surgery and Medicine, vol. 5, no. 5, May 2021, pp. 412-6, doi:10.28982/josam.843042.