Ioffe, N., E. Larionova, K. Khyzhniak, V. Mitityuk, and S. Rudenko. “Evaluation of Hemodynamics at Various Stages of Off-Pump Coronary Artery Bypass Surgery”. Ukrainian Journal of Cardiovascular Surgery, no. 1 (34), Mar. 2019, pp. 12-15, doi:10.30702/ujcvs/19.35/02(012-015).