New trends in real-time ultrasound in early pregnancy.
D001699:Biometry; D005260:Female; D005323:Fetal Monitoring / Q000379:methods*; D005544:Forecasting; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography