Hudalla, Hannes
Karmen, Christian
Bruckner, Thomas
Wallwiener, Stephanie
Fluhr, Herbert
Michael, Zoe
Freis, Alexander
Maul, Holger
Strowitzki, Thomas
Pöschl, Johannes
Kuon, Ruben-J. http://orcid.org/0000-0002-1671-0694
Article History
Received: 3 May 2018
Accepted: 18 June 2018
First Online: 25 June 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: None declared.
: The study was approved by the Heidelberg University institutional review board (Ethikkommission der Medizinischen Fakultät Heidelberg, Alte Glockengießerei 11/1, 69115 Heidelberg, Germany, IRB number: 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.
: Requirement for inform consent has been waived by the Heidelberg University institutional review board (Ethikkommission der Medizinischen Fakultät Heidelberg, IRB number: S-094/2013) due to the retrospective nature of the study and pseudonymization of data.