Genome-wide association meta-analysis of age at first cannabis use.

Address: Department of Biological Psychology/Netherlands Twin Register, VU University, Amsterdam, the Netherlands.; Department of Biological Psychology/Netherlands Twin Register, VU University, Amsterdam, the Netherlands.; Behavioral Science Institute, Radboud University, Nijmegen, the Netherlands.; Amsterdam UMC, University of Amsterdam, Department of Psychiatry, Amsterdam, the Netherlands.; Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.; Hospital for Sick Children Research Institute, Toronto, Canada.; Department of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, the Netherlands.; Psychiatric Genetics, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia.; Institute for Behavioral Genetics, Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, CO, USA.; Department of Clinical Developmental Psychology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.; GGZ inGeest and Department of Psychiatry, Amsterdam Public Health Research Institute, VU University Medical Center, Amsterdam, the Netherlands.; Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland.; Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain.; Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain.; Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain.; Biomedical Genetics Department, Boston University School of Medicine, Boston, MA, USA.; MRC Integrative Epidemiology Unit (IEU), University of Bristol, Bristol, UK.; School of Social and Community Medicine, University of Bristol, Bristol, UK.; Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, MA, USA.; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, USA.; Department of Medicine, Harvard Medical School, Boston, MA, USA.; Department of Biological Psychology/Netherlands Twin Register, VU University, Amsterdam, the Netherlands.; Amsterdam UMC, University of Amsterdam, Department of Psychiatry, Amsterdam, the Netherlands.; Department of Psychiatry, Virginia Institute for Psychiatric and Behavior Genetics, Virginia Commonwealth University, Richmond, VA, USA.; Research Centre Adolescent Development, Utrecht University, Utrecht, the Netherlands.; Department of Psychology and Psychiatry, University of California San Diego, La Jolla, CA, USA.; Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain.; Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain.; Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain.; Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain.; Avera Institute for Human Genetics, Sioux Falls, SD, USA.; Department of Medicine (Biomedical Genetics), Boston University School of Medicine, Boston, MA, USA.; Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain.; Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain.; Genetic Epidemiology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia.; Department of Psychiatry, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.; Department of Psychiatry, Washington University School of Medicine, St Louis, MO, USA.; Brain and Mind Research Institute, University of Sydney, Sydney, NSW, Australia.; School of Social and Community Medicine, University of Bristol, Bristol, UK.; Department of Psychiatry, University of Colorado Denver, Aurora, CO, USA.; Department of Psychiatry, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, the Netherlands.; Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland.; Department of Public Health, University of Helsinki, Helsinki, Finland.; Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Finland.; University of Eastern Finland, Institute of Public Health and Clinical Nutrition, Kuopio, Finland.; Department of Psychiatry, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.; Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, CO, USA.; Department of Clinical Developmental Psychology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.; Department of Psychology, Education and Child Studies, Erasmus University Rotterdam, Rotterdam, the Netherlands.; Department of Psychiatry and School of Medicine, Virginia Commonwealth University, Richmond, VA, USA.; Research Centre Adolescent Development, Utrecht University, Utrecht, the Netherlands.; Developmental Psychology, Tilburg University, Tilburg, the Netherlands.; Institute for Molecular Bioscience, The University of Queensland, Brisbane, Queensland, Australia.; Hospital for Sick Children Research Institute, Toronto, Canada.; Physiology and Nutritional Sciences, University of Toronto, Toronto, Canada.; Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN, USA.; Department of Psychiatry, University of California San Diego, La Jolla, CA, USA.; Queensland Brain Institute, The University of Queensland, Brisbane, Queensland, Australia.; Department of Biostatistics, Yale School of Public Health and VA CT, New Haven, CT, USA.; Department of Clinical Developmental Psychology, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands.; Rotman Research Institute, Baycrest, Toronto, Canada.; Psychology and Psychiatry, University of Toronto, Toronto, Canada.; Center for the Developing Brain, Child Mind Institute, New York, NY, USA.; MRC Integrative Epidemiology Unit (IEU), University of Bristol, Bristol, UK.; UK Centre for Tobacco and Alcohol Studies, School of Experimental Psychology, University of Bristol, Bristol, UK.; Psychiatry, Genetics, and Neuroscience, Yale University School of Medicine and VA CT, West Haven, CT, USA.; Department of Psychiatry, Virginia Institute for Psychiatric and Behavior Genetics, Virginia Commonwealth University, Richmond, VA, USA.; Genetic Epidemiology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia.; Behavioral Science Institute, Radboud University, Nijmegen, the Netherlands.; Department of Psychiatry, Academic Medical Centre, Amsterdam, the Netherlands.; Translational Neurogenomics group, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia.