Clinical and instrumental characteristics, clinical prognosis in patients with chronic heart failure and reduced left ventricular ejection fraction, depending on the presence and nature of the iron deficiency state. UJC [Internet]. 2018 Nov. 7 [cited 2024 Apr. 28];25(5):29-38. Available from: https://ucardioj.com.ua/index.php/UJC/article/view/65