Sathish, P., Raveendran, S., Padma, R., Balakrishnan, D., & Muthusami, M. (2017). Association between placental vitamin D receptor expression and cord blood vitamin D level and its effect on the birth weight of newborns. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 5(9), 2904–2908. https://doi.org/10.18203/2320-1770.ijrcog20162829