Funding for this research was provided by:
Medizinische Universität Graz
Text and Data Mining valid from 2017-03-01
Accepted: 23 January 2017
First Online: 1 March 2017
Compliance with ethical standards
: 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 applicable international, national, and/or institutional guidelines for the care and use of animals were followed.
: Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no conflict of interest.