Vakulenko, D.V. et al. 2018. AN APPROACH TO THE USE OF PHYSIONET OPEN SOURCE BIOSIGNALS FOR CALCULATING THE HEART RATE VARIABILITY OF ECG (TIME ANALYSIS) IN THE TRAINING OF MEDICAL STUDENTS. Medical Informatics and Engineering. 3 (Jan. 2018). DOI:https://doi.org/10.11603/mie.1996-1960.2017.3.8152.