P. Sathish, S. Raveendran, R. Padma, D. Balakrishnan, and M. Muthusami, “Correlation between maternal and neonatal blood vitamin D levels and its effect on the newborn anthropometry”, Int J Reprod Contracept Obstet Gynecol, vol. 5, no. 9, pp. 2983–2988, Feb. 2017.