Funding for this research was provided by:
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja (Grant Nos. 175039)
Science Fund of the Republic of Serbia (IN-DEPTH)
Received: 13 April 2020
Accepted: 30 June 2020
First Online: 6 July 2020
Ethics approval and consent to participate
: The study was approved by the ethical committee of the Medical Faculty, University of Belgrade (1550/II-4).
: Not applicable.
: The authors declare that they have no competing interests.