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Authors
Yordanova, Nikolinka
Vasileva, Mila
Galcheva, Sonya
Iotova, Violeta
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Funding
Funding for this research was provided by:
Varna Pediatric Endocrine Society. The funding body had no role in the design of the study, data collection, analysis, interpretation, or in writing the manuscript.
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Article History
Received: 29 October 2025
Accepted: 29 April 2026
First Online: 5 May 2026
Declarations
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: The study was approved by the Research Ethics Committee at the Medical University of Varna. (Approval No. 104/01.07.2021). Written informed consent was obtained from all patients and their parents or caregivers. The study was conducted in accordance with the ethical standards of the institutional researchcommittee and with the 1964 Declaration of Helsinki and its later amendments.
: Not applicable.
: Not applicable.
: The authors declare no competing interests.
