Merz, E [Current status of vaginal ultrasound. Part II: Obstetrical diagnosis, new aspects and future perspectives]. [electronic resource] - Ultraschall in der Medizin (Stuttgart, Germany : 1980) Apr 1994 - 52-9 p. digital Publication Type: Journal Article; Review ISSN: 0172-4614 Standard No.: 10.1055/s-2007-1004008 doi Subjects--Topical Terms: Blood Flow Velocity--physiologyCongenital Abnormalities--diagnostic imagingFemaleGestational AgeHumansImage Processing, Computer-Assisted--methodsInfant, NewbornMaternal-Fetal Exchange--physiologyPregnancyPregnancy Complications--diagnostic imagingPregnancy, Ectopic--diagnostic imagingUltrasonography, Prenatal--methodsUterine Cervical Incompetence--diagnostic imaging