Risk of Down's syndrome and amniocentesis rate.
MacIntosh
M C
MC
D000328:Adult; D000649:Amniocentesis / Q000592:standards*; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006801:Humans; D010342:Patient Acceptance of Health Care; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012306:Risk