1. Tully KP, Stuebe AM, Verbiest SB (2017) The fourth trimester: a critical transition period with unmet maternal health needs. Am J Obstet Gynecol 217(1):37-41.
2. World Health Organization (2013) WHO recommendations on postnatal care of the mother and newborn. Available at https://www.who.int/maternal_child_adolescent/documents/postnatal-care-recommendations/en//. Retrieved May 29, 2019.
3. Optimizing postpartum care (2018) ACOG Committee Opinion No. 736. American College of Obstetricians and Gynecologists. Obstet Gynecol 131:e140–50.
4. Declercq ER, Sakala C, Corry MP, Applebaum S, Herrlich A (2013) Listening to mothers (SM) III: new mothers speak out. Available at http://www.nationalpartnership.org/our-work/resources/health-care/maternity/listening-to-mothers-iii-pregnancy-and-birth-2013.pdf. Retrieved May 29, 2019.
5. Kassenbaum NJ, Bertozzi-Villa A, Coggeshall MS, Shackelford KA, Steiner C, Heuton KR, et al. (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. Lancet 384:980-1004.