Kemp, A., & Andrew, H. (2014). Global, regional, and national levels and causes of maternal mortality during 1990–2013: A systematic analysis for the Global Burden of Disease Study 2013. The Lancet, 384(9947), pp. 980-1004. doi:10.1016/S0140-6736(14)60696-6

Kemp, Andrew, and H. Andrew. "Global, Regional, and National Levels and Causes of Maternal Mortality During 1990–2013: A Systematic Analysis for the Global Burden of Disease Study 2013." The Lancet 384, no. 9947 (2014): 980-1004.

Kemp, Andrew, and H. Andrew. "Global, Regional, and National Levels and Causes of Maternal Mortality During 1990–2013: A Systematic Analysis for the Global Burden of Disease Study 2013." The Lancet 384.9947 (2014): 980-1004.