title: Maternal alpha-fetoprotein levels and sex of fetus.
authors.forename: William H
authors.initials: WH
authors.lastname: James
mesh_terms: D015415:Biomarkers / Q000097:blood; D005260:Female; D005333:Fetus; D006801:Humans; D008297:Male; D011247:Pregnancy / Q000097:blood*; D012723:Sex; D000509:alpha-Fetoproteins / Q000032:analysis*
chemical_list: D015415:Biomarkers; D000509:alpha-Fetoproteins