Bayer, Ulrike
Likar, Rudolf
Pinter, Georg
Stettner, Haro
Demschar, Susanne
Trummer, Brigitte
Neuwersch, Stefan
Glazachev, Oleg
Burtscher, Martin https://orcid.org/0000-0002-5232-3632
Article History
Received: 2 November 2018
Accepted: 10 June 2019
First Online: 14 June 2019
Ethics approval and consent to participate
: The study was performed in accordance with the ethical standards of the Declaration of Helsinki and has been approved by the local Ethics Committee (Ethikkommission Kärnten, Austria; EK-Nr.: A 09/1). All participants provided written informed consent to participate.
: Not applicable.
: The authors declare that they have no competing interests.