1. Abortion. Gallup. (2016). Gallup. 2015. http://www.gallup.com/poll/1576/abortion.aspx . Accessed 13 April 2016.
2. After Tiller. (2013). Dir. Martha Shane and Lana Wilson. Code Red.
3. A Timeline of HIV/AIDS. (2016). AIDS.gov. US Department of Health and Human Services. Accessed 13 April 2016.
4. Berghella, M., & Achenbach, A. (2012). Early pregnancy loss. In V. Berghella (Ed.), Obstetric evidence-based guidelines (2nd ed., pp. 142–149). London: Informa Healthcare.
5. Deaths and Mortality. (2015). Centers for disease control and prevention. US Department of Health and Human Services, 21 August. http://www.cdc.gov/nchs/fastats/deaths.htm . Accessed 13 April 2016.