Technical advances in ultrasound equipment.
Abramowicz
Jacques S
JS
Department of Obstetrics and Gynecology and Radiology, University of Chicago, Chicago, Illinois 60637, USA. jsa@babies.bsd.uchicago.edu
D003287:Contrast Media; D004867:Equipment Design; D005260:Female; D006801:Humans; D009774:Obstetrics / Q000639:trends; D011247:Pregnancy; D016216:Ultrasonography, Prenatal / Q000295:instrumentation*
D003287:Contrast Media