Acknowledgements
The manuscript was copyedited by Linda J. Kesselring, MS, ELS, the technical editor/writer in the Department of Emergency Medicine at the University of Maryland School of Medicine.
Disclosure statement
Dr Hayes has no declaration of interest. The authors alone are responsible for the content and writing of this letter.
Funding information
Dr Wilkerson receives research funding from Shire and Dyax.
R. Gentry Wilkerson and Bryan D. Hayes
Department of Emergency Medicine, University of Maryland School of Medicine, Baltimore, MD, USA