Ivanyuk, A., A. Rudenko, N. Ponich, S. Sagura, and B. Todurov. “Quality of Life in Patients After Minimally Invasive Surgical Correction of Aortic Valve Diseases”. Ukrainian Journal of Cardiovascular Surgery, no. 2 (28), Sept. 2017, pp. 36-39, http://cvs.org.ua/index.php/ujcvs/article/view/162.