Ramola, M., S. Jain, V. Gupta, N. Bansal, and P. Singh. “Analysis of Maternal Deaths over a Period of Three Years at a Tertiary Care Centre of Uttarakhand, India”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 7, no. 4, Mar. 2018, pp. 1357-60, doi:10.18203/2320-1770.ijrcog20180977.