«SURVIVAL OF PATIENTS WITH CHRONICLE HEART FAILURE AND LEFT VENTRICLE SYSTOLIC DYSFUNCTION DEPENDING ON CLINICAL AND INSTRUMENTAL PARAMETRS (from data of three-year prospective supervision)», J. V. N. Karazin Khark. Nat. Univ., Ser. Med., вип. 15, с. 58–66, Лип 2015, дата звернення: Жов 25, 2026. доступний у: https://periodicals.karazin.ua/medicine/article/view/7009