Smerikarova, M.
Bozhanov, S.
Tournev, I.
Maslarska, V.
Article History
Received: 12 August 2023
Accepted: 20 September 2023
First Online: 2 October 2023
Declarations
:
: This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Research Ethics Committee at the Medical University of Sofia (RECMUS) with a certification no.1480/14.05.2020.
: Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no competing interests.