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Authors
Popova, Velichka https://orcid.org/0000-0001-5733-5520
Geneva-Popova, Mariela https://orcid.org/0000-0002-7655-3846
Kraev, Krasimir https://orcid.org/0000-0002-1155-117X
Batalov, Anastas https://orcid.org/0000-0001-8857-0574
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Article History
Received: 24 January 2022
Accepted: 7 March 2022
First Online: 26 May 2022
Declarations
:
: The authors declare no financial or non-financial interests that are directly or indirectly related to this work that could be construed as a potential conflict of interest.
: The study was approved by the Ethics Committee of the Medical University of Plovdiv (nr KB—752/2016).
: The research involved Human Participants.
: Consent to participate: Every patient/participant has written consent to participate. Consent for publication: Every patient/participant has written consent for publication.
