Adolescents’ symptoms of anxiety and depression before and during the Covid-19 outbreak – A prospective population-based study of teenagers in Norway

Hafstad, G. S., Sætren, S. S., Wentzel-Larsen, T., & Augusti, E. M. (2021). Adolescents’ symptoms of anxiety and depression before and during the Covid-19 outbreak – A prospective population-based study of teenagers in Norway. The Lancet Regional Health – Europe, 5. doi:10.1016/j.lanepe.2021.100093