Paul A. Grayburn, Blasé Carabello, Judy Hung, Linda D. Gillam, David Liang, Michael J. Mack, Patrick M. McCarthy, D. Craig Miller, Alfredo Trento, Robert J. Siegel,
Defining “Severe” Secondary Mitral Regurgitation Journal of the American College of Cardiology. ,vol. 64, pp. 2792- 2801 ,(2014) ,
10.1016/J.JACC.2014.10.016