Rahbar, Kambiz http://orcid.org/0000-0002-4591-4055
Afshar-Oromieh, Ali
Bögemann, Martin
Wagner, Stefan
Schäfers, Michael
Stegger, Lars
Weckesser, Matthias
Article History
Received: 31 January 2018
Accepted: 28 February 2018
First Online: 14 March 2018
Compliance with ethical standards
:
: The University of Münster received consulting fees from ABX GmbH, Radeberg, Germany for K.R. and M.B. Additionally K.R. is scientific consultant/advisor of ABX GmbH. The authors declare they have no conflict of interest according to the subject and matter of the present article.
: 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 principles of the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. This article does not describe any studies with animals performed by any of the authors. According to data protection guidelines, formal ethical approval for retrospective studies is not necessary.