?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=B&rft.aulast=Moltrecht&rft.au=Moltrecht%2C+B&rft.atitle=A+School-Based+Mobile+App+Intervention+for+Enhancing+Emotion+Regulation+in+Children%3A+Exploratory+Trial.&rft.title=JMIR+mHealth+and+uHealth&rft.issue=7&rft.volume=9&rft.date=July+2021&rft.genre=article