title: Alpha-fetoprotein: serum levels in pregnant rats.
mesh_terms: D000818:Animals; D005260:Female; D005326:Fetal Proteins / Q000032:analysis*; D005865:Gestational Age; D008099:Liver / Q000196:embryology; D008431:Maternal-Fetal Exchange; D009024:Morphogenesis; D011247:Pregnancy; D011863:Radioimmunoassay; D051381:Rats
chemical_list: D005326:Fetal Proteins