title: Karyotyping amniotic fluids from patients with high serum alpha-fetoprotein.
mesh_terms: D000649:Amniocentesis / Q000191:economics*; D002869:Chromosome Aberrations / Q000175:diagnosis; D025063:Chromosome Disorders; D003362:Cost-Benefit Analysis; D005260:Female; D006801:Humans; D007621:Karyotyping; D011247:Pregnancy; D000509:alpha-Fetoproteins / Q000032:analysis*
chemical_list: D000509:alpha-Fetoproteins