RT Journal Article SR Electronic T1 Miscellaneous: Secondary mitral regurgitation: pathophysiology, diagnosis, and treatment JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP e1 OP e1 DO 10.1136/hrt.2010.219170corr1 VO 104 IS 12 YR 2018 UL http://heart.bmj.com/content/104/12/e1.abstract AB