Moustafa, Mayada M., et al. “Association of Age, Parity and Body Mass Index With Hemoglobin and Serum Ferritin Levels in Pregnant Women in Baghdad City”. Iraqi Journal of Pharmaceutical Sciences , vol. 30, no. 2, Dec. 2021, pp. 153-7, https://doi.org/10.31351/vol30iss2pp153-157.