Bolliger, M.
Kroehnert, J.-A.
Molineus, F.
Kandioler, D.
Schindl, M.
Riss, P.
Funding for this research was provided by:
Medical University of Vienna
Article History
Received: 26 June 2018
Accepted: 7 July 2018
First Online: 24 July 2018
Compliance with ethical guidelines
:
: M. Bolliger, J.-A. Kroehnert, F. Molineus, D. Kandioler, M. Schindl, and P. Riss declare that they have no competing interests.
: Since this is a retrospective analysis, this article does not contain any studies with human participants or animals performed by any of the authors. The Ethics Committee of the Medical University of Vienna approved this study (vote 1877/2012).