RT Journal Article SR Electronic T1 Congenital mitral regurgitation due to 'posterior reinsertion' of chordae tendineae. JF British Heart Journal JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 520 OP 524 DO 10.1136/hrt.36.5.520 VO 36 IS 5 A1 G Bevilacqua YR 1974 UL http://heart.bmj.com/content/36/5/520.abstract AB