Emergency MedicineIN - Pourmand, Ali. Department of Emergency Medicine, George Washington University, Medical Center, Washington, DC 20037. Electronic address: apourmand@mfa.gwu.edu.IN - Li, Annabel. Department of Emergency Medicine, George Washington University, Medical Center, Washington, DC 20037.IN - Yiu, Allen. Department of Emergency Medicine, George Washington University, Medical Center, Washington, DC 20037.IN - Mazer-Amirshahi, Maryann. Department of Emergency Medicine, MedStar Washington Hospital Center, Washington, DC 20010.IN - Shokoohi, Hamid. Department of Emergency Medicine, George Washington University, Medical Center, Washington, DC 20037.