Received: 4 March 2020
Accepted: 6 March 2020
First Online: 17 August 2020
Ethics approval and consent to participate
: The ethical approval was granted for the study by Ethics Committee of University of Pécs (Nr. 6955/2017). 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.