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Authors
Todorov, Petar
Peneva, Petia
Tchekalarova, Jana
Georgieva, Stela
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Funding
Funding for this research was provided by:
Bulgarian National Science Fund (КП-06-ОПР 03/3)
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Article History
Received: 20 December 2019
Accepted: 4 March 2020
First Online: 24 March 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures were performed in agreement with the European Communities Council Directive 2010/63/EU. The experimental design was approved by the Institutional Ethics Committee. There are no human participants.
