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| By | Healthwise Staff |
| Primary Medical Reviewer | Caroline S. Rhoads, MD - Internal Medicine |
| Primary Medical Reviewer | E. Gregory Thompson, MD - Internal Medicine |
| Specialist Medical Reviewer | John M. Miller, MD - Electrophysiology |
| Specialist Medical Reviewer | George Philippides, MD - Cardiology |
| Last Revised | October 7, 2009 |
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