Additional file 1 of Effectiveness of an add-on guided internet-based emotion regulation training (E-TRAIN) in adolescents with depressive and/or anxiety disorders: study protocol for a multicenter randomized controlled trial
Julie Emmelkamp, Marike A Wisman, Nico JM Beuk, Yvonne AJ Stikkelbroek, Maaike H Nauta, Jack JM Dekker & Carolien Christ
Additional file 1. English translation of the self-developed COVID-19 Questionnaire.
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