Hoelter, Philip http://orcid.org/0000-0001-9768-9630
Schmidt, Manuel
Breuer, Lorenz
Kallmünzer, Bernd
Schwab, Stefan
Doerfler, Arnd
Engelhorn, Tobias
Article History
Received: 6 April 2019
Accepted: 12 August 2019
First Online: 28 August 2019
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.
: For this type of study formal consent is not required.