Agarwal N, Tandon P. Incidence of vitamin D levels in cord blood of newborns and correlation with maternal vitamin D. Int. J. of Health Sci. [Internet]. 2021 Dec. 27 [cited 2026 Apr. 26];5(S1):687-92. Available from: http://www.sciencescholar.us/journal/index.php/ijhs/article/view/14111