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Authors
Kostik, Mikhail M. https://orcid.org/0000-0002-1180-8086
Kopchak, Olga L. https://orcid.org/0000-0002-3187-8997
Maletin, Alexey S. https://orcid.org/0000-0002-9250-8850
Mushkin, Alexander Yu. https://orcid.org/0000-0002-1342-3278
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Funding
Funding for this research was provided by:
Russian Foundation for Basic Research (18-515-57001)
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Article History
Received: 14 August 2019
Accepted: 12 November 2019
First Online: 21 November 2019
Compliance with ethical standards
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: The authors have declared that they have no potential, real, or perceived conflicts of interests.
: Written informed consent obtained from all parents/guardians of minors participating in the study according to the Declaration of Helsinki.
: Approval of the protocol of this trial: The study approved by the Ethics Committee of St.-Petersburg State Pediatric Medical University (protocol number 10/8 from 23.10.2017).
