Association between cannabis use and physical health problems in Norwegian adolescents: a cross-sectional study from the youth survey Ungdata by Ragnhild Mæland, Lars Lien, Marja Leonhardt

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Use of contraception during first sexual intercourse among Norwegian adolescents: a national cross-sectional study by Live Solveig Nordhagen, Hilde Egge, Marja Leonhardt

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Health assessments of refugee minors arriving in Norway - a modified Delphi study among health professionals in primary care settings by Cecilie Dangmann, Annette Løvheim Kleppang, Marja Leonhardt

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Does migrant background predict to what extent colorectal cancer patients want to be informed about their life expectancy? - a cross-sectional analysis by Marja Leonhardt, Katja Aschenbrenner, Martin E. Kreis, Johannes C. Lauscher

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Exploring the characteristics and potential disparities of non-migrant and migrant colorectal cancer patients regarding their satisfaction and subjective perception of care - a cro... by Marja Leonhardt, Katja Aschenbrenner, Martin E. Kreis, Johannes C. Lauscher

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Negative social media-related experiences and lower general self-efficacy are associated with depressive symptoms in adolescents by Tore Bonsaksen, Tore Bonsaksen, Anne Mari Steigen, Tonje Holte Stea, Annette Løvheim Kleppang, Annette Løvheim Kleppang, Lars Lien, Lars Lien, Marja Leonhardt, Marja Leonhardt

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Sleep and energy drink consumption among Norwegian adolescents - a cross-sectional study by Siri Kaldenbach, Marja Leonhardt, Lars Lien, Asborg A. Bjærtnes, Tor A. Strand, Mads N. Holten-Andersen

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