Calcific extension towards the mitral valve causes non-rheumatic mitral stenosis in degenerative aortic stenosis: real-time 3D transoesophageal echocardiography study.
Iwataki M, Takeuchi M, Otani K, Kuwaki H, Yoshitani H, Abe H, Lang RM, Levine RA, Otsuji Y. Calcific extension towards the mitral valve causes non-rheumatic mitral stenosis in degenerative aortic stenosis: real-time 3D transoesophageal echocardiography study. Open Heart. 2014; 1(1):e000136.