Zuhra, F. T., Mehnaz, N. Atzaz, Shabana, A. Iqbal, and S. Saeed. “25 0H Vitamin D Levels in Pregnant Females: The Hidden Time Bomb”. Journal of Rawalpindi Medical College, vol. 27, no. 2, June 2023, doi:10.37939/jrmc.v27i2.2046.