S. Jali, R. Gajjar, and M. Kamate, “Study of serum vitamin B12 levels in pregnant mothers and their newborns and its relation to growth of the infants”, Indian J Child Health, vol. 4, no. 2, pp. 203–206, Aug. 2022, doi: 10.32677/IJCH.2017.v04.i02.021.