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Authors
Salzwedel, Annett https://orcid.org/0000-0003-2530-2673
Wegscheider, Karl
Schulz-Behrendt, Claudia
Dörr, Gesine
Reibis, Rona
Völler, Heinz
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Funding
Funding for this research was provided by:
Deutsche Rentenversicherung Bund (8011-106-31/31.114)
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Article History
Received: 29 May 2018
Accepted: 4 June 2019
First Online: 7 June 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All the procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
