* J.W. and J.C.N. contributed equally to this work.
  1. Yale University School of Medicine, Department of Psychiatry, 300 George Street, New Haven, CT 06511, USA
  2. Faculty of Medicine, University of Ribeirão Preto, Ribeirão Preto, SP, Brazil
  3. VA Connecticut Healthcare System, 950 Campbell Avenue, West Haven, CT 06516, USA
  4. Clinical Neuroscience Research Unit, Connecticut Mental Health Center, 34 Park Street, 3rd Floor, New Haven, CT, 06519
Running Title: Psychedelics, Pain, Opioid Use Disorder