1. March of Dimes, Save the Children, World Health Organization. Born Too Soon: The Global Action Report on Preterm Birth. Geneva: World Health Organization; 2012.
2. Christianson A, Howson CP, Modell B. March of Dimes Global Report on Birth Defects: The Hidden Toll of Dying and Disabled Children. White Plains: March of Dimes Birth Defects Foundation; 2006.
3. United Nations Children Fund. Trends in Estimates of Maternal Deaths, 1990-2015; 2015. Available at: https://data.unicef.org/topic/maternal-health/maternal-mortality/. Accessed 7 May 2018.
4. United Nations Children Fund. The State of the World's Children: Annual Number of Births. 2018. Available at: http://data.un.org/Data.aspx?d=SOWC&f=inID%3A75. Accessed 7 May 2018.
5. Marinelli KA, Burke GS, Dodd VL. A comparison of the safety of cupfeedings and bottlefeedings in premature infants whose mothers intend to breastfeed. J Perinatol. 2001;21:350–5.