Funding for this research was provided by:
Russian Ministry of Health (АААА-А18-118051790107-2)
Received: 15 November 2018
Accepted: 16 April 2019
First Online: 2 May 2019
Ethics approval and consent to participate
: The study was approved by the Ethics committee of the Research and Clinical Institute of Pediatrics named after Yuri Veltischev of the Pirogov Russian National Research Medical University of the Ministry of Health of the Russian Federation. All participants gave their written informed consent to take part in the study. The study was done in accordance with the principles outlined in the Declaration of Helsinki (1964).
: The written informed consent was obtained from the patient and her parents for the publication of this article, along with its identifiable data and images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
: The authors declare that they have no competing interests.
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