title: Fetal cells in the maternal circulation: detection by direct AFP-immunofluorescence.
mesh_terms: D005260:Female; D005312:Fetal Blood / Q000032:analysis*; D005455:Fluorescent Antibody Technique; D006801:Humans; D007962:Leukocytes / Q000032:analysis*; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D000509:alpha-Fetoproteins / Q000032:analysis*
chemical_list: D000509:alpha-Fetoproteins