BY4: Ultrasonography — Fetus and ObstetricalReal time display of images of anatomy or flow information developed from the capture of reflected and attenuated high frequency sound waves
7 Fetal Umbilical Cord; 8 Placenta; 9 First Trimester, Single Fetus; B First Trimester, Multiple Gestation; C Second Trimester, Single Fetus; D Second Trimester, Multiple Gestation; F Third Trimester, Single Fetus; G Third Trimester, Multiple GestationZ NoneZ NoneZ None