1. Induced abortion: rates and trends worldwide;Sedgh;Lancet,2007
2. Induced abortion: a world review 1990;Henshaw;International Family Planning Perspectives,1990
3. Sharing responsibility: women society and abortion worldwide;Wulf,1999
4. Relationship between contraception and abortion: a review of evidence;Marston,2002
5. Factors affecting induced abortion behaviour among married women in Shanghai, China;Gui,1999