Study Protocol of a factorial trial ECHO: Optimizing a group-based school intervention for children with emotional problems

Neumer, S. P., Patras, J., Holen, S., Lis√ły, C., Askeland, A. L., Haug, I. M., Jeneson, A., Wentzel-Larsen, T., Adolfsen, F., Rasmussen, L. M. P., Ingul, J. M., Ytreland, K., Bania, E. V., Sund, A. M., & Martinsen, K. (2021). Study Protocol of a factorial trial ECHO: Optimizing a group-based school intervention for children with emotional problems. BMC Psychology, 9:97, 1-12. doi:10.1186/s40359-021-00581-y

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