- Correspondence to Dr Shepard D Weiner, Division of Cardiology, Columbia University College of Physicians and Surgeons, Columbia University Medical Center, New York Presbyterian Hospital, Milstein Family Heart Center, 4th Floor, 173 Fort Washington Avenue, New York, NY 10032, USA;
- Received August 29, 2013
- Revised March 6, 2014
- Accepted March 17, 2014
- First published April 8, 2014.
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