R. Gupta, S. Agarwal, N. Singh, R. Jain, A. Katiyar, and A. siddiqui, “A study to assess knowledge and attitude of antenatal women about maternal nutrition attending a tertiary care centre”, Int J Reprod Contracept Obstet Gynecol, vol. 5, no. 5, pp. 1549–1552, Jan. 2017.