Funding for this research was provided by:
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja (175097)
Text and Data Mining valid from 2019-06-03
Received: 18 February 2019
Accepted: 28 May 2019
First Online: 3 June 2019
Ethics approval and consent to participate
: This study was approved by the local Ethics Committee of the Faculty of Medicine University of Belgrade. Informed consent was obtained from all investigated subjects.
: Not applicable.
: The authors declare that they have no competing interests.