Funding for this research was provided by:
Association of substitute health insurance funds e.V.
Otto-von-Guericke-Universität Magdeburg
Article History
Received: 5 August 2021
Accepted: 20 September 2021
First Online: 15 October 2021
Declarations
:
: A. Prinz, A. Schumacher and K. Witte declare that they have no competing interests.
: All procedures performed in studies involving human participants or on human tissue were in accordance with the ethical standards of the institutional and/or national research committee and with the 1975 Helsinki declaration and its later amendments or comparable ethical standards. Approval was granted by the Ethics Committee of University Magdeburg (No. 100/20). Trial registration number (DRKS00021170) and date of registration (03 August 2020). Informed consent was obtained from all individual participants included in the study.