1 Department of Emergency Medicine, Highland Hospital-Alameda Health System, Oakland, CA.
2 Department of Emergency Medicine, Highland Hospital-Alameda Health System, Oakland, CA; Department of Emergency Medicine University of California, San Francisco, San Francisco, CA.
3 Department of Emergency Medicine, Highland Hospital-Alameda Health System, Oakland, CA; Department of Emergency Medicine University of California, San Francisco, San Francisco, CA. Electronic address: andrew.a.herring@gmail.com.