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Open Access

Peer-reviewed

Research Article

Laughing Rats Are Optimistic

  • Rafal Rygula ,

    rygula@gmail.com

    Affiliation Department of Behavioural Neuroscience and Drug Development, Institute of Pharmacology Polish Academy of Sciences, Krakow, Poland

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  • Helena Pluta,

    Affiliation Department of Behavioural Neuroscience and Drug Development, Institute of Pharmacology Polish Academy of Sciences, Krakow, Poland

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  • Piotr Popik

    Affiliations Department of Behavioural Neuroscience and Drug Development, Institute of Pharmacology Polish Academy of Sciences, Krakow, Poland, Faculty of Health Sciences, Collegium Medicum, Jagiellonian University, Krakow, Poland

    ⨯

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