Howell EA, Egorova N, Balbierz A, Zeitlin J, Hebert PL. Black-white differences in severe maternal morbidity and site of care. Am J Obstet Gynecol. 2016 Jan;214(1):122.e1-7. doi: 10.1016/j.ajog.2015.08.019. Epub 2015 Aug 15.
Howell EA, Egorova N, Balbierz A, Zeitlin J, Hebert PL. Black-white differences in severe maternal morbidity and site of care. Am J Obstet Gynecol. 2016 Jan;214(1):122.e1-7. doi: 10.1016/j.ajog.2015.08.019. Epub 2015 Aug 15.