Abubakar, A. F., Das, S. C., Mainasara, A. S., Ben, O., Bello, A., & Umar, A. A. (2014). Pattern of Maternal Serum Alpha-Foetoprotein Immediately Post Partum in Sokoto State, Nigeria. International Journal of Health and Medical Information (IJHMI), 3(2&3), 23–27. Retrieved from http://icidr.org.ng/index.php/Ijhmi/article/view/663