3Lumbiganon P, Laopaiboon M, Gtilmezoglu AM,et al. Method of delivery and pregnancy outcomes in Asia: the WHO global survey on maternal and perinatal health 2007 - 2008 [ J ]. Lancet, 2010, 375 (9713 ) :490-499.
4Harper LM, Macones GA. Predicting success and reducing the risks when attempting vaginal birth after cesarean [ J ]. Obstet Gynecol Surv, 2008, 63 (8) :538-545.
5Merrill BS, Gibbs CE. Planned vaginal delivery following cesare- an section[ J]. Obstet Gynecol,1978, 52( 1 ) :50-52.
6Macones GA, Peipert J, Nelson DB, et al. Maternal complica- tions, with vaginal birth after cesarean delivery: a multicenter study [ J ]. Am J Obstet Gynecol, 2005, 193 (5) : 1656-1662.
7Landon MB, Leindecker S, Spong CY, et al. The MFMU Cesar- ean Registry:factors affecting the success of trial of labor after previous cesarean delivery [ J ]. Am J Obstet Gynecol, 2005, 193 (3 Pt 2) :1016-1023.
8Koroukian SM. Relative risk of postpartum complications in the Ohio Medicaid population: vaginal versus cesarean delivery[ J ]. Med Care Res Rev, 2004, 61(2) :203-224.