PEPTIC ULCER DISEASE: CHANGE OF NOTIONS AND APPROACHES, ACCENTS TO THE HEART RATE VARIABILITY. J. V. N. Karazin Khark. Nat. Univ., Ser. Med. [Internet]. 2015 Jul. 4 [cited 2026 Oct. 25];(15):129-40. Available from: https://periodicals.karazin.ua/medicine/article/view/7023