BrindJ., ChinchilliV. M., SeversW. B., Sumy-LongJ.1996. Induced abortion as an independent risk factor for breast cancer: A comprehensive review and meta-analysis. Journal of Epidemiology and Community Health50: 481–96.
2.
FinerL. B., ZolnaM. R.2011. Unintended pregnancy in the United States: Incidence and disparities, 2006. Contraception84: 478–485.
3.
JonesR. K., KooistraK.2011. Abortion incidence and access to services in the United States, 2008. Perspectives on Sexual and Reproductive Health43: 41–50.
4.
Ring-CassidyE., GentilesI.2002. Women's Health after Abortion: The medical and psychological evidence. Toronto: The deVeber Institute for Bioethics and Social Research.
5.
SykesP.1993. Complications of termination of pregnancy: A retrospective study of admissions to Christchurch Women's Hospital, 1989 and 1990. New Zealand Medical Journal106: 83–5.