1. Center for Innovation to Implementation, VHA Palo Alto Health Care System, Menlo Park, CA 94025, USA
2. Department of Veterans Affairs, VHA Office of Community Care/Clinical Integration & Field Operations (10D), Washington, DC 20420, USA
3. Department of Emergency Medicine, University of California, San Francisco, CA 94110, USA
4. Department of Emergency Medicine (Affiliated), Stanford University, Stanford, CA 94305, USA