This paper is in the following e-collection/theme issue:

Non-Randomized Studies (funded, non-eHealth) (135) Bullying and Cyberbullying (34) School-based Health Education and Interventions (77)

Published on in Vol 9, No 8 (2020): August

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/14371, first published .
Evaluation of the Universal Prevention Program Klasse2000 in Fourth Grade Primary School Children: Protocol for a Propensity Score-Matching Approach

Evaluation of the Universal Prevention Program Klasse2000 in Fourth Grade Primary School Children: Protocol for a Propensity Score-Matching Approach

Evaluation of the Universal Prevention Program Klasse2000 in Fourth Grade Primary School Children: Protocol for a Propensity Score-Matching Approach

Authors of this article:

Sören Kliem1 Author Orcid Image ;   Yvonne Krieg2 Author Orcid Image ;   Anna Lohmann2 Author Orcid Image ;   Thomas Mößle3 Author Orcid Image
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