COMPARISON OF DIFFERENT METHODS OF OPTIMAL BREATHING FREQUENCIES DETECTION ON THE BASIS OF HEART RATE VARIABILITY SPECTRAL INDEXES’ RATIOS. J. V. N. Karazin Khark. Nat. Univ., Ser. Med. [інтернет]. 04, Липень 2015 [цит. за 26, Жовтень 2026];(19):53-5. доступний у: https://periodicals.karazin.ua/medicine/article/view/6938