Amniocentesis--too dangerous and too late?
D000022:Abortion, Spontaneous / Q000209:etiology; D000328:Adult; D000649:Amniocentesis / Q000009:adverse effects*; D002869:Chromosome Aberrations / Q000175:diagnosis*; D025063:Chromosome Disorders; D003657:Decision Making; D005260:Female; D005865:Gestational Age; D006801:Humans; D010342:Patient Acceptance of Health Care; D011247:Pregnancy; D013019:South Africa; D013997:Time Factors