Hillenbrand, Andreas http://orcid.org/0000-0003-2896-4656
Beck, Annika
Kratzer, Wolfgang
Graeter, Tilmann
Barth, Thomas F. E.
Schmidberger, Julian
Möller, Peter
Henne-Bruns, Doris
Gruener, Beate
Article History
Received: 24 January 2018
Accepted: 5 June 2018
First Online: 16 June 2018
Compliance with ethical standards:
:
: The authors declare that they have no conflict of interest.
: 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.
: Informed consent was obtained from all individual participants included in the study. There is no gender defined. We did not perform a breakdown by gender since it is not helpful. Gender-specific data can be consulted on justified request.