Yadav, M.; Verma, M. K.; Bairwa, M.; Meena, G.; Rajoria, L. Prevalence of Vitamin D Deficiency and Effect of Vitamin D Supplementation on Feto-Maternal Outcome in Tertiary Care Centre. Int J Reprod Contracept Obstet Gynecol 2018, 7, 4912-4918.