2Maslovitz S, Barkai G, Lessing JB, et al. Improved accuracy of postpartum blood loss estimation as assessed by simulation [ J ]. Acta Obstet Gynecol Scand, 2008,87 (9) :929-934.
3Geller SE, Adams MG, Miller S. A continuum of care model for postpartum hemorrhage[ J ]. Int J Fertil Womens Med,2007,52 (2-3) :97-105.
4Toledo P, McCarthy RJ, Hewlett BJ,et al. The accuracy of blood loss estimation after simulated vaginal delivery [ J ]. Ancsth Analg, 2007,105 ( 6 ) : 1736-1740.
5Robert N, Suneet PC, Steven PC, et al. Prediction of hemorrhage at cesarean delivery[J]. Obstet Gynecol, 1994,83:923-926.
6Cobs CA,Marphy EL,Laros RK. Factors associated with postpartum hemorrhage with vaginal birh [ J ]. Obstet Gynecol,1991,77:69-92.
7Bugalho A, Daniel A.Misoproatol for prevention of postpartum hemorrhage[J] .International Journal of Gynecology & Obstetrics,2001,73:1-6.
8M L Mc Cormick, H G Sanghvi. Pteventing postpartum hemorrhage in low-resource settings[J] .International Journal Gynecology & Obstetrics,2002,77:267-275.
4World Health Organization.The World Report 2005: Attening to 136 million births,every year 2005 Make every mother and child cotmt[R].Geneva: the World Health Organization,2005:62-63.