Hudalla, Hannes http://orcid.org/0000-0002-9205-0114
Bruckner, Thomas
Pöschl, Johannes
Strowitzki, Thomas
Kuon, Ruben-J.
Article History
Received: 7 January 2020
Revised: 1 May 2020
Accepted: 1 May 2020
First Online: 12 May 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: The study was approved by the Heidelberg University institutional review board (IRB, S-094/2013). All procedures performed in the study were in accordance with the ethical standards and data safety of the institutional and national research committee and with the 1964 Helsinki declaration and its later amendments.
: The institutional ethics committee waived informed consent due to the retrospective nature of the study, and pseudonymization of data