RT Journal Article SR Electronic T1 THE ELECTROCARDIOGRAM IN MITRAL STENOSIS JF British Heart Journal JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 185 OP 192 DO 10.1136/hrt.14.2.185 VO 14 IS 2 A1 J. R. Trounce YR 1952 UL http://heart.bmj.com/content/14/2/185.abstract AB