COMT Val 158 Met moderation of stress-induced psychosis - Stefanis, Nicholas C; Henquet, CÉcile; Avramopoulos, Dimitrios; Smyrnis, Nikolaos; Evdokimidis, Ioannis; Myin-Germeys, Inez; Stefanis, Costas N; Van Os, Jim (Psychological medicine, 2007)