At the Heart of the Matter
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Charles M. Wiener, MD, Section Editor
Funding: No funding sources were used in the writing of this manuscript.
Conflict of Interest: None of the authors have any conflicts of interest to disclose.
Authorship: All authors listed above had access to the data included in this article and played a role writing this manuscript.
PII: S0002-9343(08)01251-5
doi:10.1016/j.amjmed.2008.12.007
© 2009 Elsevier Inc. All rights reserved.

