ASSESSMENT OF CHANGES IN THE DISTRIBUTION RATIOS OF ULTRA-LOW-FREQUENCY, LOW-FREQUENCY AND HIGH-FREQUENCY COMPONENTS OF HEART RATE VARIABILITY DURING THE PACED BREATHING TEST IN PATIENTS WITH ARTERIAL HYPERTENSION. J. V. N. Karazin Khark. Nat. Univ., Ser. Med. [інтернет]. 17, Листопад 2016 [цит. за 25, Жовтень 2026];(31):10-7. доступний у: https://periodicals.karazin.ua/medicine/article/view/6351