Turan, O. E., S. Altuntaş, A. N. Kaya, F. Kartaler, and M. Şahin. “The Evaluation of Heart Rate Variability in Patients With Postural Tachycardia Syndrome”. GEVHER NESIBE JOURNAL OF MEDICAL AND HEALTH SCIENCES, vol. 5, no. 6, July 2022, pp. 31-35, doi:10.46648/gnj.53.