Peschka, A. F.
Kaestle, S.
Seidel, F.
Weidhase, L.
Bernhard, M.
Gries, A.
Petros, S.
Article History
Received: 8 May 2018
Accepted: 5 July 2018
First Online: 26 July 2018
Compliance with ethical guidelines
:
: A.F. Peschka, S. Kaestle, F. Seidel, L. Weidhase, M. Bernhard, A. Gries and S. Petros declare that they have no competing interests.
: 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 1975 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.