Akhter, S.N., John, A.M., Sultana, A., Alam, S., Rahim, I.A. and Amrullah, M. 2026. Association between maternal vitamin D deficiency and pregnancy outcomes: a prospective study. International Journal of Reproduction, Contraception, Obstetrics and Gynecology. 15, 11 (Oct. 2026), 4469–4475. DOI:https://doi.org/10.18203/2320-1770.ijrcog20263995.