Study: Daily or High-Potency Cannabis Use Associated with Increased Incidence of Psychotic Disorder

The contribution of cannabis use to variation in the incidence of psychotic disorder across Europe (EU-GEI): a multicentre case-control study – The Lancet Psychiatry (free)

Commentaries: Cannabis and psychosis: triangulating the evidence – The Lancet Psychiatry (free) AND Expert reaction to daily cannabis use, potency and psychosis – Science Media Centre (free) AND Daily or high-potency cannabis increases risk of psychotic disorder, study finds – CNN (free) AND Daily cannabis and skunk users run higher psychosis risk – Reuters (free)