Going Underground: Demographics, Services, and Best Practices Endorsed by Practitioners Providing Support for Naturalistic Psychedelic Use. - Glynos, Nicolas G.; Baker, Anne; Aday, Jacob S.; Pouyan, Niloufar; Barron, Julie; Herberholz, Moss; Kruger, Daniel; Boehnke, Kevin F. (Journal of Psychoactive Drugs, 2025)