- Correspondence to Dr Elissa Schechter-Perkins, Department of Emergency Medicine, Boston University School of Medicine, 1 Boston Medical Center Place, Dowling 1 South, Boston, MA 02118, USA;
- Received May 2, 2013
- Revised May 30, 2013
- Accepted June 1, 2013
- First published July 12, 2013.
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