Patel, B. S., N. Kedia, S. R. Shah, S. P. Agrawal, V. B. Patel, and A. B. Patel. “Changing Trends in Cesarean Section: From 1950 to 2020”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 9, no. 5, Apr. 2020, pp. 2222-6, doi:10.18203/2320-1770.ijrcog20201842.