1. Department of Emergency Medicine, NYU Grossman School of Medicine, New York, New York
2. Department of Population Health, NYU Grossman School of Medicine, New York, New York
3. Director of Implementation Research, National Health Care for the Homeless Council, Nashville, Tennessee
4. Department of Emergency Medicine, UCSF School of Medicine, San Francisco, California
5. Philip R. Lee Institute for Health Policy Studies, UCSF School of Medicine, San Francisco, California