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Research Article

ARNTL (BMAL1) and NPAS2 Gene Variants Contribute to Fertility and Seasonality

  • Leena Kovanen,

    Affiliations: Department of Mental Health and Substance Abuse Services, National Institute for Health and Welfare, Helsinki, Finland, Department of Alcohol, Drugs and Addiction, National Institute for Health and Welfare, Helsinki, Finland

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  • Sirkku T. Saarikoski,

    Affiliation: Department of Alcohol, Drugs and Addiction, National Institute for Health and Welfare, Helsinki, Finland

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  • Arpo Aromaa,

    Affiliation: Division of Welfare and Health Policies, National Institute for Health and Welfare, Helsinki, Finland

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  • Jouko Lönnqvist,

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

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  • Timo Partonen mail

    timo.partonen@thl.fi

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

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  • Published: April 02, 2010
  • DOI: 10.1371/journal.pone.0010007

About the Authors

Leena Kovanen, Jouko Lönnqvist, Timo Partonen
Department of Mental Health and Substance Abuse Services, National Institute for Health and Welfare, Helsinki, Finland
Leena Kovanen, Sirkku T. Saarikoski
Department of Alcohol, Drugs and Addiction, National Institute for Health and Welfare, Helsinki, Finland
Arpo Aromaa
Division of Welfare and Health Policies, National Institute for Health and Welfare, Helsinki, Finland
Jouko Lönnqvist
Department of Psychiatry, University of Helsinki, Helsinki, Finland

Corresponding Author

Email: timo.partonen@thl.fi

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: STS AA JL TP. Performed the experiments: LK. Analyzed the data: LK. Contributed reagents/materials/analysis tools: STS AA JL TP. Wrote the paper: LK STS AA JL TP.