Kingsley-Godwin, M. J. http://orcid.org/0000-0001-7490-8685
Tenev, A. http://orcid.org/0000-0003-0639-9959
Uchikova, E. http://orcid.org/0000-0002-5217-9001
Velkova, K. http://orcid.org/0000-0002-5220-2590
Belovezhdov, V. http://orcid.org/0000-0002-3896-7642
Stoeva, M. http://orcid.org/0000-0003-4327-0409
Funding for this research was provided by:
Medical University of Plovdiv (Internal university project)
Article History
Received: 20 March 2021
Accepted: 7 September 2021
First Online: 18 September 2021
Declarations
:
: The authors declare that they have no conflicts of interest.
: The study was approved by the local Research Ethics Committee at the Medical University of Plovdiv.
: Informed consent was obtained from all individual participants included in the study.
: The participants have consented to the publication of the study results.