NEBRASKA,s prenatal diagnostic program.
D000367:Age Factors; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D005865:Gestational Age; D006801:Humans; D008875:Middle Aged; D009329:Nebraska; D011247:Pregnancy; D011295:Prenatal Care; D011296:Prenatal Diagnosis