title: Racial difference and biological significance of maternal serum alpha-fetoprotein.
mesh_terms: D000328:Adult; D044383:Black People; D001835:Body Weight; D005260:Female; D006801:Humans; D011247:Pregnancy; D044465:White People; D000509:alpha-Fetoproteins / Q000032:analysis*
chemical_list: D000509:alpha-Fetoproteins