1 Department of Emergency Medicine, Yale School of Medicine, New Haven, CT; Center for Outcomes Research and Evaluation, Yale School of Medicine, New Haven, CT. Electronic address: [email protected].
2 Department of Emergency Medicine, University of Texas Southwestern Medical Center, Dallas, TX.
3 Department of Emergency Medicine, Stanford University School of Medicine, Stanford, CA.
4 Department of Emergency Medicine, University of Arizona College of Medicine, Tucson, AZ.
5 Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA.
6 Department of Emergency Medicine, Yale School of Medicine, New Haven, CT; Center for Outcomes Research and Evaluation, Yale School of Medicine, New Haven, CT.