Nikolova, Emiliya http://orcid.org/0000-0002-9098-6138
Dimova, Petia
Minkin, Krasimir
Todorov, Tihomir
Mitev, Vanio
Todorova, Albena
Funding for this research was provided by:
Medical University - Sofia (D-118/2018, D-127/2019)
Article History
Received: 17 May 2020
Revised: 1 August 2020
Accepted: 21 August 2020
First Online: 3 September 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.