1. Sexual and reproductive health: a matter of life and death;Glasier;Lancet,2006
2. Abortion and fertility regulation;Kulczycki;Lancet,1996
3. Assessing costs and benefits of sexual and reproductive health interventions: occasional report No. 11;Vlassoff,2004
4. Sharing responsibilities: women, society and abortion worldwide;Alan Guttmacher Institute,1999
5. Safe abortion: technical and policy guidance for health systems;WHO,2003