1. Braveman, P., Egerter, S., & Mockenhaupt, R. (2011). Broadening the focus: The need to address the social determinants of health. American Journal of Preventive Medicine, 40(1S1), S4–S18.
2. Breedlove, G. (2005). Perceptions of social support from pregnant and parenting teens using community-based doulas. Journal of Perinatal Education, 14(3), 15–22.
3. Christopher, G., & Simpson, P. (2014). Improving birth outcomes requires closing the racial gap. American Journal of Public Health, 104, S10-S12.
4. DeClerq, E., Sakala, C., Corry, M., Applebaum, S., & Herrlich, A. (2013). Listening to mothers III: Pregnancy and birth. New York: Childbirth Connection.
5. DOHMH. (2014). Epiquery: NYC Interactive Health Data System (Community Health Survey 2014). Retrieved 3 March 2016.