Shatylo, V. B., Bodretska, L. A., Shapovalenko, . I. S., Voinarovska, H. P., & Butynets, Z. S. (2021). Pentoxyphylline: possibilities to reduce manifestations of chronic heart failure with preserved left ventricular ejection fraction in elderly . Zaporozhye Medical Journal, 23(1), 24–31. https://doi.org/10.14739/2310-1210.2021.1.224839