Additive effects of adjunctive app-based interventions for mental disorders - A systematic review and meta-analysis of randomised controlled trials - Fuhrmann, Lukas M.; Weisel, Kiona K.; Harrer, Mathias; Kulke, Jennifer K.; Baumeister, Harald; Cuijpers, Pim; Ebert, David D.; Berking, Matthias (Friedrich-Alexander-Universität Erlangen-Nürnberg, 2024)