Dorofeev, Anton http://orcid.org/0000-0002-2656-0108
Tylla, Alfred
Benco, Martin
Drescher, Wolf
Stangl, Richard
Article History
Received: 17 August 2019
Accepted: 6 September 2019
First Online: 10 September 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures were performed with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: In this study, formal informed consent was obtained from all participants.