TY - JOUR T1 - Systolic time intervals and impedance cardiography. JF - British Heart Journal JO - Heart SP - 253 LP - 254 DO - 10.1136/hrt.41.2.253 VL - 41 IS - 2 AU - D H Spodick Y1 - 1979/02/01 UR - http://heart.bmj.com/content/41/2/253.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -