1. Department of Neurology, Massachusetts General Hospital, Boston
2. Department of Critical Care Medicine, Hospital Israelita Albert Einstein, São Paulo, Brazil
3. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
4. Department of Neurology, Harvard Medical School, Boston, Massachusetts
5. Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
6. Department of Psychiatry, Massachusetts General Hospital, Boston
7. Department of Psychiatry, Harvard Medical School, Boston, Massachusetts
8. Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts
9. Mongan Institute for Health Policy, Department of Medicine, Massachusetts General Hospital, Boston
10. Department of Medicine, Harvard Medical School, Boston, Massachusetts
11. Department of Health Policy and Management, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
12. Harvard Kennedy School, Cambridge, Massachusetts
13. National Bureau of Economic Research, Cambridge, Massachusetts