Hudalla, Hannes
Bruckner, Thomas
Pöschl, Johannes
Strowitzki, Thomas
Kuon, Ruben-J. http://orcid.org/0000-0002-1671-0694
Article History
Received: 14 November 2019
Accepted: 13 February 2020
First Online: 28 February 2020
Compliance with ethical standards
:
: All authors declare no conflict of interest.
: The study was approved by the Heidelberg University institutional Review Board (IRB, S-094/2013). 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 institutional ethics committee waived informed consent due to the retrospective nature of the study, and pseudonymization of data.