title: Early prenatal diagnosis.
authors.forename: H B
authors.initials: HB
authors.lastname: Valman
mesh_terms: D000328:Adult; D000649:Amniocentesis; D015193:Chorionic Villi Sampling; D005260:Female; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000009:adverse effects; D012307:Risk Factors; D014463:Ultrasonography