Muhlbauer, Manfred K.
Tomasch, Ernst
Sinz, Wolfgang
Trattnig, Siegfried
Steffan, Hermann
Article History
Received: 26 March 2021
Accepted: 9 February 2022
First Online: 8 March 2022
Declarations
:
: 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. The study protocol was approved by the Ethic commission of the Medical University of Vienna (EK Nr. 571/2007). Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership, or other equity interest; and expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript.