Diagnostic ultrasound in obstetrics and gynecology.
D000013:Congenital Abnormalities / Q000175:diagnosis; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D005831:Genital Diseases, Female / Q000175:diagnosis*; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis*; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography