Pukas, K. V., and I. V. Leoshko. “Fragmentaiom Operation in Left Atrium for Correction of Isolated Mitral Valve Disease”. Ukrainian Journal of Cardiovascular Surgery, no. 1 (30) (March 12, 2018): 29-31. Accessed June 13, 2024. https://cvs.org.ua/index.php/ujcvs/article/view/93.