Stoynova, Mariya Asenova http://orcid.org/0000-0003-1355-9551
Shinkov, Alexander Dimitrov http://orcid.org/0000-0002-9203-4149
Dimitrova, Inna Dimitrova http://orcid.org/0000-0001-7190-5008
Yankova, Inna Angelova http://orcid.org/0000-0002-0416-4091
Kovatcheva, Roussanka Dimitrova http://orcid.org/0000-0003-1894-8433
Article History
Received: 21 March 2023
Accepted: 4 December 2023
First Online: 12 February 2024
Declarations
:
: The authors have no relevant financial or non-financial interests to disclose.
: The study protocol was approved by the Institutional Ethical Committee (approval number 21B/25.07.2017) and was in accordance with the 1964 Declaration of Helsinki and its later amendments.
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