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Authors
Pfeiffer, Elisa http://orcid.org/0000-0002-9742-3004
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Funding
Funding for this research was provided by:
world childhood foundation
Universität Ulm
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Article History
Received: 24 June 2021
Accepted: 20 September 2021
First Online: 25 September 2021
Declarations
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: The study protocol of the RCT study was approved by the Ethics Committee at the University of Ulm (#176/16). All participants and their legal guardians, if minor, were informed about the study protocol and gave their written consent prior study inclusion.
: The consent for publication was obtained from all study participants. The individual information was handled anonymous and no images or videos were employed.
: There are no competing interests.
