About The Study: This study estimated the increase in 12-month psilocybin use in Oregon and Colorado associated with decriminalization.
Corresponding Author: To contact the corresponding author, Joshua C. Black, PhD, email joshua.black@rmpds.org .
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(doi:10.1001/jama.2026.1952)
Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.
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