Müller, M.
Schefold, J. C.
Leichtle, A. B.
Srivastava, D.
Lindner, G.
Exadaktylos, A. K.
Pfortmueller, C. A.
Article History
Received: 10 January 2018
Revised: 27 May 2018
Accepted: 8 July 2018
First Online: 21 August 2018
Compliance with ethical guidelines
:
: M. Müller, J. C. Schefold, A. B. Leichtle, D. Srivastava, G. Lindner, A. K. Exadaktylos and C. A. Pfortmueller declare that they have no competing interests.
: The study was approved by the regional ethics committee of the Canton of Bern, Switzerland (KEK: 14-02-13). Individual informed consent was waived by the ethics committee.