Norton,Mary E. <br/><br/>
Callen's Ultrasonography in Obstetrics and Gynecology  

 - 6TH 
 - Philadelphia    Elsevier  2017 
<br/><br/><label>ISBN: </label>978-0-323-32834-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ultrasonics in obstetrics
<br/><br/><label>Dewey Class. No.: </label>618.207543 NOR