Nguyen, S. H., A. H. Nguyen, T. H. Ngo, and M. N. Nguyen. “3D Endoscopic Minimally Invasive Surgery for Combined Mitral and Aortic Valve Disease: A Case Series”. The Vietnam Journal of Cardiovascular and Thoracic Surgery, vol. 53, Oct. 2025, pp. 135 -42, doi:10.47972/vjcts.v53i.1553.