Yang Eric H, Kwon Murray H, Mahajan Aman, Child John S, Tobis Jonathan M, Manthripragada Gopi, Silverstein Cheri A, Shamsa Kamran
Division of Cardiology, Department of Medicine, University of California at Los Angeles Medical Center, Los Angeles, CA 90095, USA.
Echocardiography. 2013 Mar;30(3):E81-4. doi: 10.1111/echo.12071. Epub 2012 Dec 10.