Funding for this research was provided by:
Javna Agencija za Raziskovalno Dejavnost RS (P3-0338)
Received: 6 February 2021
Accepted: 23 March 2021
First Online: 7 April 2021
: Research was conducted observing the principles of the Declaration of Helsinki and The Oviedo Convention. Consent from the Slovene National Medical Ethics Committee was obtained on Dec 15th 2016 (Ref. No. 651/2016-2).
: All the participants gave their informed written consent to participate in the study and for their data to be used for publication with their identities hidden.
: The authors have no conflict of interest to report.