Kityan S.A. “CHARACTERISTICS OF ARTERIAL WALL STIFFNESS IN PATIENTS WITH CHRONIC HEART FAILURE WITH PRESERVED SYSTOLIC FUNCTION OF THE LEFT VENTRICLE”. Frontline Medical Sciences and Pharmaceutical Journal, vol. 2, no. 04, Apr. 2022, pp. 39-46, doi:10.37547/medical-fmspj-02-04-06.