Yuan, H., T. Wei, Z. Wu, T. Lu, J. Chen, Y. Zeng, L. Tan, and C. Huang. ‚ÄúComparison of Transcatheter Mitral-Valve Repair and Surgical Mitral-Valve Repair in Elderly Patients With Mitral Regurgitation‚ÄĚ. The Heart Surgery Forum, vol. 24, no. 1, Feb. 2021, pp. E108-E115, doi:10.1532/hsf.3433.