Hoàng Dũng, N., and T. Quyết Tiến. “POST-OP REMARKABLE CHARACTERIZATIONS OF SURGERY FOR PRIMARY MITRAL VALVE REGURGITATION WITH LEFT VENTRICULAR DYSFUNCTION (EF ≤ 60%)”. Vietnam Medical Journal, vol. 498, no. 2, May 2021, doi:10.51298/vmj.v498i2.198.