6Martin JA, Hamilton BE, Ventura S J, et al. Births: final data for 2001 [ J ]. National Vital Statistics Reports, 2002, 51 : 1-102.
7Wray J. Review of the National Sentinel Caesarean Section Audit Report[ J]. Practising Midwife, 2001,4:24-25.
8Anderson ER, Black R, Brocklehurst P. Acute obstetric emergency drill in England and Wales : a survey of practice [ J ]. BJOG, 2005,112 : 372-375.
9Black RS, Brocklehurst P. A systematic review of training in acute obstetric emergencies[ J ]. B JOG, 2003,110:837-841.
10International Confederation of Midwives, International Federation of Gynaecologists and Obstetricians. Joint statement : management of the third stage of labour to prevent post-partum haemorrhage [J]. J Midwifery Womens Health,2004,49:76 -77.