1. Saving Mothers’ Lives reviewing maternal deaths to make motherhood safer: 2006–2008. The Eighth Report on Confidential Enquiries into Maternal Deaths in the United Kingdom;Centre for Maternal and Child Enquiries (CMACE);BJOG,2011
2. The World Health Report 2005: Make Every Mother and Child Count, World Health Organisation, Geneva, 2005.
3. Estimating blood loss: can teaching significantly improve visual estimation?;Dildy;Obstet Gynecol,2004
4. Visually estimated and calculated blood loss in vaginal and cesarean delivery;Stafford;Am J Obstet Gynecol,2008