Jae K. Oh, James B. Seward, A. Jamil Tajik <br/><br/>
The Echo Manual. 

 - 3rd 
 -  Lippincott Williams and Wilkins  2008 
 - 431 
<br/><br/><label>ISBN: </label>978-8189836146 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cardiovascular System
<br/><br/><label>National Library of Medicine Call No.: </label>WG 39 O 2008