RT Journal Article SR Electronic T1 THE GRAPHIC CONFIGURATION OF INNOCENT SYSTOLIC MURMURS JF British Heart Journal JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 129 OP 134 DO 10.1136/hrt.19.1.129 VO 19 IS 1 A1 Bertrand Wells YR 1957 UL http://heart.bmj.com/content/19/1/129.abstract AB