Dahiya, S., N. Malik, K. Pandey, R. Gupta, V. Perumal, and V. Singh. “Impact of Different Grades of Anaemia Severity During Pregnancy on Maternal and Neonatal Outcomes: A Prospective Study”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 8, no. 6, May 2019, pp. 2215-20, doi:10.18203/2320-1770.ijrcog20192409.