UGWUENE ET AL. Trimester-Specific Patterns of Maternal Serum Alpha-Fetoprotein Among Pregnant Women Attending a Tertiary Hospital in Southeast Nigeria: Serum Alpha-Fetoprotein Among Pregnant Women. Journal of Biological Research and Biotechnology, Nigeria, v. 24, n. 1, p. 486–489, 2026. DOI: 10.4314/br.v24i1.22. Disponível em: https://bio-research.com.ng/index.php/home/article/view/60.. Acesso em: 15 jun. 2026.