Atzaz, N. , Khattak, M., Zuhra, F.T., Afzal, J., Khaliq, S. and Saeed, S. 2023. The frequency of vitamin B12 derangements in females presenting for workup of iron deficiency anemia. Journal of Rawalpindi Medical College. 27, 2 (Jun. 2023). DOI:https://doi.org/10.37939/jrmc.v27i2.1999.