1. Ultrasound in pregnancy,1988
2. Routine ultrasound screening for antenatal detection of intrauterine growth retardation;Warsof;Obstet Gynecol,1986
3. Abdominal ultrasound examination of the first-trimester fetus;Green;Am J Obstet Gynecol,1988
4. Prenatal detection of fetal anomalies with sonography;Fleischer;Pediatr Clin North Am,1985
5. Sonography at the time of genetic amniocentesis to screen for fetal malformations;Hegge;Obstet Gynecol,1988