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Authors
Dimitrov, Nikolay
Brähler, Elmar
Hering, Thomas
Glaesmer, Heide
Zenger, Markus
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Funding
Funding for this research was provided by:
Hochschule Magdeburg-Stendal
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Article History
Accepted: 19 June 2025
First Online: 8 July 2025
Declarations
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: The data collection took place in 2008. In Germany back then was not a common practice to collect ethics approval. That is why, although the current study is designed and conducted in adherence with the declaration of Helsinki, there is no specific ethic approval. Not applicable.
: Each of the participants was informed about the study and signed an informed consent.
