Funding for this research was provided by:
Hungarian Scientific Research Fund (20765/3/2018/FEKUTSTRAT grant)
Received: 3 September 2020
Accepted: 6 September 2020
First Online: 23 April 2021
Ethics approval and consent to participate
: The ethical approval was granted for the study by the Ethics Committee of University of Pécs (Nr. 5739/2015). Participants were informed about the research aim and methods before signing the informed consent form. The investigation conforms to the principles outlined in the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.