1.
B. P. Thangappah R, Sampson U, Azad A, Arumugam R, Anand S, Karunakaran P. A study to evaluate serum 25-hydroxy vitamin D3 and calcium levels in maternal and cord blood and their effect on pregnancy outcome. Int J Reprod Contracept Obstet Gynecol [Internet]. 2019 Mar. 26 [cited 2025 Oct. 13];8(4):1575-82. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/6201