1. Department of Psychiatry, Yale University, New Haven, CT, USA
2. Prisons Group Legal Clinic, Universidad de los Andes Medical School, Bogotá, Colombia
3. Department of Psychiatry and Behavioral Sciences, University of California San Francisco, San Francisco, CA, USA
4. United States Public Health Service, Department of Health and Human Services (DHHS), Rockville, MD, USA
5. Substance Abuse and Mental Health Services Administration (SAMHSA), DHHS, Rockville, MD, USA
6. Office of Science and Medicine, DHHS, Washington, DC, USA
7. Office of the Assistant Secretary, DHHS, Washington, DC, USA
8. Pain and Palliative Care, National Institutes of Health Clinical Center, Bethesda, MD, USA
9. Center for Psychedelic and Consciousness Research, Johns Hopkins University, Baltimore, MD, USA
10. Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
11. Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
12. David Geffen School of Medicine, University of California (UCLA), Los Angeles, CA, USA
13. Division of Child and Adolescent Psychiatry, Harbor-UCLA Medical Center, Torrance, CA, USA
14. Research, Health Policy and Abuse Liability, Pinney Associates, Bethesda, MD, USA
15. Chacruna Institute, San Francisco, CA, USA
16. Global Drug Survey
17. Moray House School of Education and Sport, University of Edinburgh, Edinburgh, Scotland, United Kingdom
18. Office of the Chief Scientist, Office of the Commissioner, US Food and Drug Administration, Silver Spring, MD, USA
19. (formerly) Office of the Director General, World Health Organization, Geneva, Switzerland