Junker, Daniel http://orcid.org/0000-0002-5331-3479
Steinkohl, Fabian
Fritz, Veronika
Bektic, Jasmin
Tokas, Theodoros
Aigner, Friedrich
Herrmann, Thomas R. W.
Rieger, Michael
Nagele, Udo
Article History
Received: 2 May 2018
Accepted: 31 July 2018
First Online: 4 August 2018
Compliance of ethical standards
:
: The authors declare that they have no conflict of interest, nothing to declare.
: This is a retrospective study. Institutional review board approval was granted by means of a general waiver for studies with retrospective data analysis (Ethikkommission, Med. Univ. Innsbruck; 2009-02-20). All procedures performed 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.
: For this type of study formal consent is not required.