Koltunova, G. B., Senko, O. G., Khoroshyak, V. Y., Krikunov, O. A., Malysheva, T. A., & Spysarenko, S. P. (2018). Preoperative heart failure in infective endocarditis. Ukrainian Journal of Cardiovascular Surgery, (3 (32), 32-35. https://doi.org/10.30702/ujcvs/18.32/07(032-035)