1. WHO. Maternal health [Internet]. 2020 [cited 2020 Jun 28]. Available from: https://www.who.int/health-topics/maternal-health#tab=tab_1.
2. WHO. WHO | Maternal mortality ratio (per 100 000 live births) [Internet]. World Health Organization; 2014 [cited 2019 Aug 23]. Available from: https://www.who.int/healthinfo/statistics/indmaternalmortality/en/.
3. World Bank. Reproductive, Maternal and Child Health Overview [Internet]. World Bank - Reproductive maternal Childbirth. 2019 [cited 2019 Aug 23]. Available from: https://www.worldbank.org/en/topic/reproductivematernalchildhealth.
4. Mehta LS, Sharma G, Creanga AA, Hameed AB, Hollier LM, Johnson JC, et al. Call to Action: Maternal Health and Saving Mothers [Internet]. American Heart Association, Inc.; 2021. p. 144:e251–e269. Available from: www.ahajournals.org/journal/circ%0ACirculation.
5. WHO. Maternal health overview [Internet]. Maternal health overview. 2022 [cited 2022 Jan 25]. Available from: https://www.who.int/health-topics/maternal-health#tab=tab_1.