1 Department of Emergency Medicine, UCLA-Olive View Medical Center, Sylmar, CA; Department of Emergency Medicine, University of California, Los Angeles, Los Angeles, CA. Electronic address: slai.emed@gmail.com.
2 Ronald O. Perelman Department of Emergency Medicine, New York University, New York, NY.
3 Department of Emergency Medicine, University of California, San Francisco-Fresno, Fresno, CA.
4 Department of Emergency Medicine, University of California, Los Angeles, Los Angeles, CA; Division of Emergency Medicine, Greater Los Angeles VA Healthcare System, Los Angeles, CA.