Long-Lasting Cognitive and Physical Impairment After Recreational Use of the Semisynthetic Cannabinoid Hexahydrocannabinonyl (HHC-C9): A Case Report. - Reiter, Nanna; Palmqvist, Dorte Fris; Larsen, Gro Borges; Høi, Mathilde Emilie; Rasmussen, Brian Schou; Thomsen, Ragnar (Reports (MDPI AG), 2025)