1. Statistics New Zealand: Abortion trends in New Zealand 1980-2007. 2009, Wellington: Statistics New Zealand, Retrieved May 31, 2010, [
http://www.stats.govt.nz/publications/populationstatistics/abortion-trends.aspx
]
2. Guttmacher Institute: Facts on Induced Abortion in the United States. 2006, New York: AGI
3. Bartlett LA, Berg CJ, Shulman HB, Zane SB, Green CA, Whitehead S, Atrash HK: Risk factors for legal induced abortion-related mortality in the United States. Obstetrics and Gynecology. 2004, 103: 729-37.
4. Buehler JW, Schulz KF, Grimes DA, Hogue CJ: The risk of serious complications from induced abortions: do personal characteristics make a difference?. American Journal of Obstetrics and Gynecology. 1985, 153 (1): 14-20.
5. Ferris LE, McMain-Klein M, Colodny N, Fellows GF, Lamont J: Factors associated with immediate abortion complications. Canadian Medical Association Journal. 1996, 154 (11): 1677-85.