Text and Data Mining valid from 2019-05-03
Received: 24 January 2019
Accepted: 17 April 2019
First Online: 3 May 2019
: Not applicable.
: the study was approved by independent ethics committee of Dmitriy Rogachev National Center for Pediatric Hematology, Oncology and Immunology (Moscow, Russia), consent to participate was obtained from the patient.
: institutional consent form was obtained from the patient.
: The authors declare that they have no competing interests.
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