Wittschieber, Daniel http://orcid.org/0000-0003-1344-7488
Heuberger, Katrin
Schulz, Ronald
Köhler, Helga
Varchmin-Schultheiß, Karin
Article History
Accepted: 2 May 2019
First Online: 1 July 2019
Compliance with ethical standards
:
: 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.
: The authors declare that they have no conflict of interest.
: The article does not include participants that require their informed consent.