Prodan, Natalia
Hoopmann, Markus
Sonek, Jiri
Oettling, Christoph
Abele, Harald
Wagner, Philipp
Kagan, Karl Oliver
Article History
Received: 27 November 2019
Accepted: 9 March 2020
First Online: 24 March 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. This is a retrospective study that was approved by the local ethical committee (357/20129BO2).