1. Maternal Health and Safe Motherhood Programme.The prevention and management of unsafe abortion: report of a technical working group(WHO/MSM/92.5). Geneva: World Health Organization; 1993. Available from: whqlibdoc.who.int/hq/1992/WHO_MSM_92.5.pdf [accessed 7 February 2014].
2. Safe abortion: technical and policy guidance for health systems. 2nd ed. Geneva: World Health Organization; 2012. Available from: apps.who.int/iris/bitstream/10665/70914/1/9789241548434_eng.pdf [accessed 7 February 2014].
3. Risk factors for legal induced abortion-related mortality in the United States.;Bartlett;Obstet Gynecol,2004
4. Unsafe abortion: global and regional estimates of the incidence of unsafe abortion and associated mortality in 2008. 6th ed. Geneva: World Health Organization; 2011. Available from: whqlibdoc.who.int/publications/2011/9789241501118_eng.pdf [accessed 7 February 2014].
5. Abortion: a tabulation of available data on the frequency and mortality of unsafe abortion. 2nd ed. Geneva: World Health Organization; 1994. Available from: libdoc.who.int/hq/1990/WHO_MCH_90.14.pdf [accessed 7 February 2014].