Vaginal ultrasound: an invaluable component of modern obstetric ultrasound.
Chervenak
F A
FA
Arabin
B
B
D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging; D005333:Fetus / Q000033:anatomy & histology; D006801:Humans; D011247:Pregnancy; D016216:Ultrasonography, Prenatal; D014621:Vagina