First-trimester fetal diagnosis: prudential ethics.
D000028:Abortion, Induced; D002824:Chorionic Villi / Q000648:ultrastructure*; D002986:Clinical Trials as Topic; D003951:Diagnostic Errors; D004992:Ethics, Medical; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000209:etiology; D011261:Pregnancy Trimester, First; D011296:Prenatal Diagnosis / Q000379:methods* / Q000592:standards; D012306:Risk