4Vintzileos AM , Nochimson DJ , Guzman ER et al. lntrapartum electronic fetal heart rate monitoring versus intermittent auscultation. Obstet Gynecol, 1995, 85:149
5Flamm BL Once a cesarean, always a controversy. Obstet Gynecol, 1997; 90 ( 2): 312
6Lieberman E. Risk factors for uterine rupture during a trial of labor aftercesarean , Clin Obstet Gynecol, 2001, 44:609