Bier, Georg http://orcid.org/0000-0002-1034-5681
Klumpp, Bernhard
Roder, Constantin
Garbe, Claus
Preibsch, Heike
Ernemann, Ulrike
Hempel, Johann-Martin
Article History
Received: 19 January 2019
Accepted: 8 April 2019
First Online: 18 April 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 standard. For this type of study formal consent is not required.
: Our local ethics committee waived the requirement to obtain informed consent.