Müller, Fabio
Appelt, Konrad A.
Meier, Christian
Suhm, Norbert http://orcid.org/0000-0001-8258-9944
Article History
Received: 24 January 2019
Accepted: 24 June 2019
First Online: 4 July 2019
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: No external funding was received.
: This study was approved by the regional ethics committee on research involving humans (ID: EKNZ no. 2017-00338).
: Due to the retrospective design, no informed consent was obtained. This was specifically approved by the ethics committee prior to the study.