Funding for this research was provided by:
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja (III 43012)
Text and Data Mining valid from 2019-03-16
Received: 18 November 2018
Accepted: 28 February 2019
First Online: 16 March 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: The experiments were performed in accordance with The European Council Directive (EU Directive of 2010; 2010/63/EU) and were approved by the local Ethics Committee of the Faculty of Medicine, University of Niš.
: Informed consent was obtained from all individual participants included in the study.