title: Origin of maternal serum alpha-fetoprotein.
mesh_terms: D000653:Amniotic Fluid / Q000378:metabolism*; D000757:Anencephaly / Q000097:blood; D003208:Concanavalin A / Q000097:blood; D005260:Female; D006801:Humans; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D016136:Spina Bifida Occulta / Q000097:blood; D000509:alpha-Fetoproteins / Q000378:metabolism*
chemical_list: D000509:alpha-Fetoproteins; D003208:Concanavalin A