AbstractGet full access to this articleView all access options for this article.Get accessReferences1.Centers for Disease Control and Prevention. (2015). Births and natality 2013. Retrieved from http://www.cdc.gov/nchs/fastats/births.htm2. Mathews T. J. MacDorman M. F. (2011). Infant mortality statistics from the 2007 period linked birth/infant death data set. National Vital Statistics Reports, 59, 1–30. Retrieved from http://www.cdc.gov/nchs/data/nvsr/nvsr59/nvsr59_06.pdf
