Antenatal diagnosis.
D000649:Amniocentesis; D002869:Chromosome Aberrations / Q000175:diagnosis; D025063:Chromosome Disorders; D000013:Congenital Abnormalities / Q000175:diagnosis; D004314:Down Syndrome / Q000175:diagnosis; D005260:Female; D006801:Humans; D007926:Lesch-Nyhan Syndrome / Q000175:diagnosis; D011247:Pregnancy; D011296:Prenatal Diagnosis