Derrick Bruce J, Jafri Farrukh N, Saul Turandot, Lewiss Resa E
Department of Emergency Medicine, Emergency Ultrasound Division, St. Luke's/Roosevelt Hospital Center, New York, NY 10019, USA.
J Emerg Med. 2013 Jun;44(6):1144-5. doi: 10.1016/j.jemermed.2012.11.023. Epub 2013 Feb 8.