Funding for this research was provided by:
National Research Fund (K109549)
First Online: 15 June 2020
Compliance with Ethical Standards
: The authors V. Bodnár, K. Nagy, Á. Cziboly and G. Bárdos declare that they have no 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, as revised in 2000. Informed consent was obtained from all patients for being included in the study.Additional informed consent was obtained from all patients for which identifying information is included in this article.
: K109549 OTKA Fund.