Patterns of Internalizing Problems, Substance Use and Cognitive Flexibility Before and After Naturalistic Psilocybin Use: A Repeated Measures Latent Profile Analysis. - Richard, Jérémie; Scott, Jeremy; Nayak, Sandeep M.; Sepeda, Nathan D.; Lowe, Matthew X.; Jackson, Heather; Garcia-Romeu, Albert (International Journal of Mental Health & Addiction, 2026)