Efficacy and cost-effectiveness of guided and unguided internet- and mobile- based indicated transdiagnostic prevention of depression and anxiety (ICare Prevent) a three-armed randomized controlled trial in four European countries - Weisel, Kiona; Zarski, Anna-Carlotta; Berger, Thomas; Krieger, Tobias; Schaub, Michael P.; Moser, Christian T.; Berking, Matthias; Dey, Michelle; Botella, Cristina; Banos, Rosa; Herrero, Rocio; Etchemendy, Ernestina; et al. (Friedrich-Alexander-Universität Erlangen-Nürnberg, 2018)