Document is current
Any future updates will be listed below
-
Authors
Hourfar, Jan https://orcid.org/0000-0002-8692-4516
Lisson, Jörg Alexander
Kinzinger, Gero Stefan Michael
- License Information
-
More Information
Article History
Received: 20 April 2020
Accepted: 10 July 2020
First Online: 6 January 2021
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors. Ethical approval for this retrospective study was granted by the Ethics Commission of University of Aachen, Germany, No. 171/08.
: For this type of study, formal consent is not required.
