RT Article T1 Excessive cannabis use is associated with earlier age at onset in bipolar disorder JF European archives of psychiatry + clinical neuroscience VO 261 IS 6 SP 397 OP 405 A2 Lagerberg, Trine V. LA German YR 2011 UL https://krimdok.uni-tuebingen.de/Record/1627815597 K1 Cannabismissbrauch K1 Psychische Störung K1 Krankheitsbeginn