Biehl, C. http://orcid.org/0000-0003-2981-5062
Rupp, M.
Kern, S.
Heiss, C.
ElKhassawna, T.
Szalay, G.
Article History
Received: 4 May 2020
Accepted: 25 June 2020
First Online: 3 July 2020
Compliance with ethical standards
:
: The authors declare that they have no competing interests. They declare that they have no affiliations with or involvement in any organization or entity with any financial interest or nonfinancial interest in the subject matter or materials discussed in this manuscript.
: The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.
: Not applicable.
: All authors read and approved the final manuscript.
: 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 1964 Helsinki declaration and its later amendments or comparable ethical standards. All patients received information about the study and gave written consent. The hospital data protection officer according to the National Institutes of Health guidelines approved the retrospective study design and all investigation protocols. According to the legal bases of the Ethics Committee, State Chamber of Medicine in Mainz, Rhineland-Palatinate (chairman Prof. Dr. med. Dipl. Ing. Stephan Letzel; ยง5a, professional code), no approval was necessary.
: Due to retrospective nature of the research, no informed consent was requested by the ethical committee. Individual patients cannot be identified.