Felton Diana, Callaway David, Tibbles Carrie, McGillicuddy Daniel
Department of Emergency Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA.
J Emerg Med. 2010 Jan;38(1):51-4. doi: 10.1016/j.jemermed.2009.12.001. Epub 2009 Dec 29.