A randomised controlled trial of vaporised Δ⁹-tetrahydrocannabinol and cannabidiol alone and in combination in frequent and infrequent cannabis users: acute intoxication effects

- Solowij, Nadia; Broyd, Samantha; Murray, Robin; Jones, Alison; Michie, Patricia T.; Croft, Rodney; Greenwood, Lisa-Marie; van Hell, Hendrika; Martelozzo, Dave; Rueb, Kuna; Todd, Juanita; Liu, Zheng; Galettis, Peter; Martin, Jennifer