Funding for this research was provided by:
National Bureau of Research, Development and Innovation, Hungary (OTKA TO32019, OTKA TO 42670)
Fulbright Foundation (Stipend to AF)
Semmelweis University, Faculty of Medicine
Received: 25 November 2019
Accepted: 10 July 2020
First Online: 21 September 2020
: The authors declare no competition of interests.