Easter Joshua S, Grossman Shamai A, Woodruff Michael M, Rosen Carlo L
Department of Emergency Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA.
J Emerg Med. 2008 Jul;35(1):77-80. doi: 10.1016/j.jemermed.2008.04.002. Epub 2008 May 27.