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Bulgarian Cardiology 32(2): 78-99
doi:
10.3897/bgcardio.32.e189472
Received:
22 Feb 2026 | Approved:
30 Jun 2026 | Published:
18 Sep 2026
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Authors

A. Keltchev
- Corresponding author
Acibadem City Clinic UMBAL Vitosha, Sofia, Bulgaria
Acibadem City Clinic UMBAL Vitosha, Sofia, Bulgaria
Acibadem City Clinic UMBAL Vitosha, Sofia, Bulgaria
Academic editor
PhD, Sofia, Bulgaria
Medical University Sofia, Sofia, Bulgaria
National Cardiology Hospital, Sofia, Bulgaria
Conflict of interest
The authors have declared that no competing interests exist.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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