Furman, M. M., S. V. Varbanets, and O. M. Dovgan. “Aortic Root Enlargement During Aortic Valve Replacement in Adults”. Ukrainian Journal of Cardiovascular Surgery, no. 4 (45), Dec. 2021, pp. 56-62, doi:10.30702/ujcvs/21.4512/FV059-5662.