Internet-delivered cognitive behavioral therapy for adolescents with excessive worry: a randomized controlled trial with mediation analysis. - Wahlund, Tove; Perrin, Sean; Olofsdotter Lauri, Klara; Burman, Malin; Dagerborn, Simone; Meregalli, Micaela; Västhagen, Maja; Jolstedt, Maral; Nord, Martina; Serlachius, Eva; Vigerland, Sarah; Andersson, Erik (Cognitive Behaviour Therapy, 2025)