Funding for this research was provided by:
Paracelsus Medical University
First Online: 25 June 2019
Compliance with ethical guidelines
: G. Kuchukhidze, J. Höfler, M. Kronbichler, E. Schmid, M. Kirschner, L. Rainer, L. Kronbichler, J. Gaggl, and E. Trinka declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
: All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975 (in its most recently amended version). Informed consent was obtained from all patients included in the study. The study has been conducted in accordance to the WMA Declaration of Helsinki and Good Clinical Practice (GCP) Guidelines.