Nguyen, Minh Ngoc, Sinh Hien Nguyen, Thai Minh Nguyen, Quang Thien Le, Thanh Hung Ngo, and Vu Dang Minh Pham. “Early Results of Aortic Root Enlargement Using Y-Incision Technique (yang Technique) in Hanoi Heart Hospital”. The Vietnam Journal of Cardiovascular and Thoracic Surgery 52 (August 30, 2025): 244 - 253. Accessed July 18, 2026. https://vjcts.vn/index.php/vjcts/article/view/1518.