1. Department of Research Development and Regulatory Affairs, MAPS Public Benefit Corporation, Santa Cruz, CA, United States (Feduccia, Jerome). Multidisciplinary Association for Psychedelic Studies, Santa Cruz, CA, United States (Yazar-Klosinski, Doblin). MAPS Public Benefit Corporation, Santa Cruz, CA, United States (Emerson). Department of Psychiatry and Behavioral Sciences, Medical University of South Carolina, Charleston, SC, United States (Mithoefer).