Schmidt-Hegemann, N.-S. http://orcid.org/0000-0002-2091-3603
Kroeze, S.G.C.
Henkenberens, C.
Vogel, M.M.E.
Kirste, S.
Becker, J.
Burger, I. A.
Derlin, T.
Bartenstein, P.
Eiber, M.
Mix, M.
la Fougère, Ch.
Müller, A.C.
Grosu, A.L.
Combs, S.E.
Christiansen, H.
Guckenberger, M.
Belka, C.
Article History
Received: 20 November 2019
Accepted: 22 January 2020
First Online: 30 January 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 research committees of the respective Medical Faculties (Business Administration System for Ethics Committees Number (BASEC-Nr. 2017–01499)) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: This retrospective multicenter study was undertaken in six university hospitals in Switzerland and Germany, was approved by the local Ethics Committee of the respective Medical Faculties (BASEC-Nr. 2017–01499), and the need for written informed consent was waived.