Hristova, Ivanka http://orcid.org/0000-0003-4899-1256
Marinova, Elena http://orcid.org/0000-0003-3793-3317
Atanassova, Juliana
Slavchev, Vladimir
Bozkova, Anelya
Kiyashkina, Petya
Penkova, Petya
Funding for this research was provided by:
Umea University
Article History
Received: 30 December 2022
Accepted: 19 August 2023
First Online: 17 October 2023
Declarations
:
: The authors have no competing interests to declare that are relevant to the content of this article.