Abdul, A. E., Oloyede, T., Yusuf, S., & Gambo, A. (2023). Comparative study of serum calcium in pre-eclamptic and normotensive pregnant women at Federal Teaching Hospital Katsina. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 12(9), 2595–2599. https://doi.org/10.18203/2320-1770.ijrcog20232710