Schliemann, B. http://orcid.org/0000-0002-4267-2863
Dyrna, F.
Kravchenko, V.
Raschke, M. J.
Katthagen, J. C.
Funding for this research was provided by:
Universitätsklinikum Münster
Article History
Received: 13 November 2020
Accepted: 19 January 2021
First Online: 17 February 2021
Compliance with ethical guidelines
:
: B. Schliemann, F. Dyrna, V. Kravchenko, M. J. Raschke, and J. C. Katthagen declare that they have no competing interests.
: Ethical approval was not required due to retrospective study design without patient examinations. However, this chart review study was in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.