title: Cannabis, confounders and consequences.
authors.forename: Iain J
authors.initials: IJ
authors.lastname: Robbé
authors.forename: Ghyath
authors.initials: G
authors.lastname: Alshawaf
authors.forename: Amar
authors.initials: A
authors.lastname: Jasem
authors.forename: Harriet
authors.initials: H
authors.lastname: Sharp
mesh_terms: D015982:Bias; D015986:Confounding Factors, Epidemiologic; D006801:Humans; D002189:Marijuana Abuse / Q000453:epidemiology; D012737:Sex Factors