1. Induced abortion: an historical overview;McFarland;Gynecol Health,1993
2. Women, society, the state and abortion: a structural analysis;Sheeran,1973
3. Abortion: a social dilemma;Mankekar,1973
4. A doctor’s guide to having an abortion;Hall,1971
5. Abortion surveillance – United States, 2007;Centers for Disease Control and Prevention;MMWR,2011