Tancheva, Lyubka
Lazarova, Maria
Saso, Luciano
Kalfin, Reni https://orcid.org/0000-0002-7764-3640
Stefanova, Miroslava
Uzunova, Diamara
Atanasov, Atanas G.
Article History
Received: 8 July 2020
Accepted: 16 November 2020
First Online: 5 January 2021
Compliance with Ethical Standards
:
: The authors declare no competing interests
: All experiments with laboratory animals have been performed strictly according to the national regulations and European Communities Council Directive (86/609/EEC) and the “Principles of laboratory animal care” (NIH publication No. 85–23) concerning the protection of animals used for scientific and experimental purposes.
: All authors declare consent to participate and consent for publication