1. Making pregnancy safer: the critical role of the skilled attendant;World Health Organization,2004
2. World Health Organization Skilled attendant at birth: 2005 estimates www.who.int/reproductive-health/global_monitoring/skilled_attendant.html
3. Maternal mortality in 2005;World Health Organization,2007
4. Meeting MDG-5: an impossible dream?;Rosenfield;Lancet,2006