Acknowledgements
The data were collected with assistance from EXTRA funds from the Norwegian Foundation for Health and Rehabilitation. We thank all the adolescents who took part in this study.
© 2017 Sara Breistøl, Jocelyne Clench-Aas, Betty Van Roy, Ruth Kjærsti Raanaas, published by Center for Evidence-based Psychiatry
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.