Lazidi, E., Rudyk, I., Visotska, O., Pecherska, A. and Bolotskykh, G. 2018. Hyponatremia in patients with chronic heart failure and preserved ejection fraction of the left ventricle. ScienceRise: Medical Science. 2 (22) (Mar. 2018), 4–9. DOI:https://doi.org/10.15587/2519-4798.2018.122201.