Applying machine learning to international drug monitoring: classifying cannabis resin collected in Europe using cannabinoid concentrations. - Freeman, Tom P.; Beeching, Edward; Craft, Sam; Di Forti, Marta; Frison, Giampietro; Lindholst, Christian; Oomen, Pieter E.; Potter, David; Rigter, Sander; Rømer Thomsen, Kristine; Zamengo, Luca; Cunningham, Andrew; et al. (European Archives of Psychiatry & Clinical Neuroscience, 2025)