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Aarhus University

The researcher

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"As far as we know, we’ve conducted the world's largest study of the link between cannabis use disorder and affective disorders," says Oskar Hougaard Jefsen, a PhD student from the Department of Clinical Medicine at Aarhus University. He is the first author of the study, which includes register data from more than six million Danes. Photo: Simon Byrial Fischel

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Photo: Simon Byrial Fischel

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