Martynenko A, Yabluchansky M. HEART RATE VARIABILITY: CLASSIFICATION AND DYNAMIC SYSTEM ANALYSIS. J. V. N. Karazin Khark. Nat. Univ., Ser. Med. [Internet]. 1 [cited 2024Apr.25];0(11):10-8. Available from: https://periodicals.karazin.ua/medicine/article/view/7139