AU - Large M, Sharma S, Compton MT, Slade T, Nielssen O TI - Cannabis use and earlier onset of psychosis: A systematic meta-analysis PT - JOUR DP - 2011 TA - Archives of General Psychiatry pages = {555-561}, VI - 68 IP - 6 AID - 10.1001/archgenpsychiatry.2011.5 [doi] 4100 - http://dx.doi.org/10.1001/archgenpsychiatry.2011.5 SO - Archives of General Psychiatry June 6, 2011 68(6):555