title: [Importance of direct echographic control in performing prenatal diagnosis].
mesh_terms: D000328:Adult; D000649:Amniocentesis / Q000379:methods; D000650:Amnion / Q000473:pathology; D001707:Biopsy, Needle / Q000379:methods; D002823:Chorion / Q000473:pathology; D002869:Chromosome Aberrations / Q000175:diagnosis; D025063:Chromosome Disorders; D004314:Down Syndrome / Q000175:diagnosis; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods*; D014463:Ultrasonography
vernacular_title: Znachenie neposredstvennogo ékhograficheskogo kontrolia pri provedenii nekotorykh metodov prenatal'noĭ diagnostiki.