[Use of ultrasonic diagnostic methods of study in obstetrics].
D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006801:Humans; D010920:Placenta; D010923:Placenta Previa / Q000175:diagnosis; D011247:Pregnancy; D014463:Ultrasonography
Primenenie ul'trazvukovogo diagnosticheskogo metoda issledovaniia v akusherstve.