TY - JOUR T1 - PARADOXICAL SPLITTING OF THE SECOND HEART SOUND JF - British Heart Journal JO - Heart SP - 21 LP - 28 DO - 10.1136/hrt.18.1.21 VL - 18 IS - 1 AU - Ian R. Gray Y1 - 1956/01/01 UR - http://heart.bmj.com/content/18/1/21.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -