Iotchev, Ivaylo Borislavov http://orcid.org/0000-0001-6171-6078
Szabó, Dóra http://orcid.org/0000-0001-7902-7713
Kis, Anna
Kubinyi, Enikő http://orcid.org/0000-0002-4468-9845
Article History
Received: 1 October 2019
Accepted: 1 April 2020
First Online: 16 April 2020
Competing interests
: The authors declare no competing interests.