1.
Singh S, Sinha P, Gupta U, N. K. G, Srivastava A. Status of vitamin D, paratharmone and serum calcium levels in perimenopausal women and their mutual correlation. Int J Reprod Contracept Obstet Gynecol [Internet]. 2016 Dec. 14 [cited 2025 Sep. 25];5(11):4009-13. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/381