About the Authors

Laura Kananen

Affiliations Research Program of Molecular Neurology, Faculty of Medicine, University of Helsinki, Helsinki, Finland, Department of Medical Genetics, Faculty of Medicine, University of Helsinki, Helsinki, Finland

Ida Surakka

Affiliations Public Health Genomics Unit, National Institute for Health and Welfare, Helsinki, Finland, FIMM, Institute of Molecular Medicine Finland, University of Helsinki, Helsinki, Finland

Sami Pirkola

Affiliations Mental Health and Substance Abuse Services, National Institute for Health and Welfare, Helsinki, Finland, Department of Psychiatry, Helsinki University Central Hospital, Helsinki, Finland

Jaana Suvisaari

Affiliation Mental Health and Substance Abuse Services, National Institute for Health and Welfare, Helsinki, Finland

Jouko Lönnqvist

Affiliations Mental Health and Substance Abuse Services, National Institute for Health and Welfare, Helsinki, Finland, Department of Psychiatry, Helsinki University Central Hospital, Helsinki, Finland

Leena Peltonen

Affiliations Department of Medical Genetics, Faculty of Medicine, University of Helsinki, Helsinki, Finland, Public Health Genomics Unit, National Institute for Health and Welfare, Helsinki, Finland, FIMM, Institute of Molecular Medicine Finland, University of Helsinki, Helsinki, Finland, The Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America, Wellcome Trust Sanger Institute, Hinxton, Cambridge, United Kingdom

Samuli Ripatti

Affiliations Public Health Genomics Unit, National Institute for Health and Welfare, Helsinki, Finland, FIMM, Institute of Molecular Medicine Finland, University of Helsinki, Helsinki, Finland

Iiris Hovatta

iiris.hovatta@helsinki.fi

Affiliations Research Program of Molecular Neurology, Faculty of Medicine, University of Helsinki, Helsinki, Finland, Department of Medical Genetics, Faculty of Medicine, University of Helsinki, Helsinki, Finland, Mental Health and Substance Abuse Services, National Institute for Health and Welfare, Helsinki, Finland

Competing Interests

Prof. Peltonen is a member of the board of Orion Pharma. The other authors report no competing interests.

Author Contributions

Conceived and designed the experiments: IH. Performed the experiments: LK IH. Analyzed the data: LK IS SP JS SR IH. Contributed reagents/materials/analysis tools: SP JS JL LP SR IH. Wrote the paper: LK SR IH.