1. Preface Emergency Medicine Clinics Volume 29, Issue 4, (November 2011)
J. Stephen Bohan, MD 
Emergency Medicine Clinics 
Volume 29, Issue 4, (November 2011)
DOI: /j.emc
Copyright © 2011 Elsevier Inc. Terms and Conditions

2. J. Stephen Bohan, MD, Guest Editor
Emergency Medicine Clinics  , DOI: ( /j.emc )
Copyright © 2011 Elsevier Inc. Terms and Conditions

3. Joshua M. Kosowsky, MD, Guest Editor
Emergency Medicine Clinics  , DOI: ( /j.emc )
Copyright © 2011 Elsevier Inc. Terms and Conditions