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Christiansen F, Ahlqvist VH, Nyroos M, Löfgren H, Berglind D. Physical Activity through a Classroom-Based Intervention: A Pragmatic Non-Randomized Trial among Swedish Adolescents in an Upper Secondary School. International Journal of Environmental Research and Public Health. 2021; 18(21):11041. https://doi.org/10.3390/ijerph182111041

Christiansen, Filip, Viktor H. Ahlqvist, Mikaela Nyroos, Hans Löfgren, and Daniel Berglind. 2021. "Physical Activity through a Classroom-Based Intervention: A Pragmatic Non-Randomized Trial among Swedish Adolescents in an Upper Secondary School" International Journal of Environmental Research and Public Health 18, no. 21: 11041. https://doi.org/10.3390/ijerph182111041

Christiansen, F., Ahlqvist, V. H., Nyroos, M., Löfgren, H., & Berglind, D. (2021). Physical Activity through a Classroom-Based Intervention: A Pragmatic Non-Randomized Trial among Swedish Adolescents in an Upper Secondary School. International Journal of Environmental Research and Public Health, 18(21), 11041. https://doi.org/10.3390/ijerph182111041