Non-replication of interaction between cannabis use and trauma in predicting psychosis.

1 Department of Psychiatry and Neuropsychology, South Limburg Mental Health Research and Teaching Network, EURON, Maastricht University Medical Center, Maastricht, The Netherlands 2 King’s College London, King's Health Partners, Department of Psychosis Studies, Institute of Psychiatry, London, UK 3 Mondriaan Zorggroep, Division Addiction Care, South Limburg, The Netherlands 4 Max Planck Institute of Psychiatry, Munich, Germany 5 University of Basel, Department of Psychology, Division of Epidemiology and Health Psychology, Basel, Switzerland 6 Institute of Clinical Psychology and Psychotherapy, Technical University, Dresden, Germany