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Authors
Claessen, Heiner https://orcid.org/0000-0002-9818-413X
Kvitkina, Tatjana
Narres, Maria
Trautner, Christoph
Bertram, Bernd
Icks, Andrea
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Funding
Funding for this research was provided by:
Bundesministerium für Gesundheit (2516DIA001)
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Article History
Received: 20 April 2020
Revised: 24 July 2020
Accepted: 6 August 2020
First Online: 25 September 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was performed in accordance with the Declaration of Helsinki for research involving human subjects and the good epidemiological practice guideline. Since official secondary data were analyzed, no ethical statement was needed.
: Not applicable.
: Not applicable.
