| | Now You See It; Now You Don’tNo abstract is available. To read the body of this article, please view the Full Text online. |
Division of Cardiology, Feinberg School of Medicine, Northwestern University, Chicago, Ill.  Requests for reprints should be addressed to Norman C. Wang, MD, Fellow, Cardiac Electrophysiology, Northwestern Memorial Hospital, 251 East Huron Street, Feinberg 8-542, Chicago, IL 60611.
Julia H. Indik, MD, PhD, Section Editor PII: S0002-9343(07)00238-0 doi:10.1016/j.amjmed.2007.03.004 © 2007 Elsevier Inc. All rights reserved. | |
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