1. Department of Emergency Medicine, Harvard Medical School, Harvard University, Boston, MA, USA
2. Department of Emergency Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
3. Department of Medicine, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
4. Department of Health Policy and Management, UCLA Fielding School of Public Health, Los Angeles, CA, USA
5. Department of Emergency Medicine, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
6. Department of Emergency Medicine, Emory University School of Medicine, Atlanta, GA, USA
7. American Civil Liberties Union of Southern California, Los Angeles, CA, USA
8. Department of Obstetrics and Gynecology, University of Southern California, Los Angeles General Medical Center, Los Angeles, CA, USA