Froehner, Michael
Koch, Rainer
Heberling, Ulrike
Hübler, Matthias
Novotny, Vladimir
Borkowetz, Angelika
Wirth, Manfred P.
Thomas, Christian
Article History
Received: 2 March 2019
Accepted: 24 June 2019
First Online: 2 July 2019
Compliance with ethical standards
:
: The authors declare no conflict of interest related to this manuscript.
: All 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. Institutional review board approval was obtained (reference number EK84032009).
: Informed consent was obtained from all individual participants included in the study.