大麻與精神病

大麻使用者罹患精神病機率為兩倍

Continued cannabis use and risk of incidence and persistence of psychotic symptoms: 10 year follow-up cohort study
BMJ 2011; 342:d738 doi: 10.1136/bmj.d738

Cannabis and the increased incidence and persistence of psychosis
BMJ 2011; 342:d719 doi: 10.1136/bmj.d719