EHIAGHE, A. F., D.E., A., I.J, E., & M.I, O. (2014). ELEVATION OF β HUMAN CHORIONIC GONADOTROPIN HORMONE AND FIBRINOGEN CONCENTRATION AS AN IMMUNOPROTECTIVE MECHANISM DURING PREGNANCY. JOURNAL OF ADVANCES IN BIOLOGY, 3(3), 253–256. https://doi.org/10.24297/jab.v3i3.1931