Funding for this research was provided by:
Hungarian Scientific Research Fund (K115861)
Emberi Eroforrások Minisztériuma (EFOP-3.6.3-VEKOP-16-2017-00009)
Hungarian Pediatric Oncology Network (01/MGYH-MGYGYT/2018)
New National Excellence Program (ÚNKP-18-2-I-SE-37)
Semmelweis Science and Innovation Fund (STIA-KF-17)
Received: 8 February 2020
Accepted: 15 June 2020
First Online: 22 June 2020
Ethics approval and consent to participate
: All procedures performed in this study, involving human participants were in accordance with the ethical standards of the Medical Research Council of Hungary and with the 1964 Helsinki declaration and its later amendments. The study was approved by the central ethical committee (institute: ETT-TUKEB; approval numbers: 60106-1/2015/EKU and 6886/2019/EKU). The study is compliant with all relevant ethical regulations for human research participants, and informed consent was obtained from all patients or legal guardians.
: The authors confirm that written consent from each patient has been obtained to publish the manuscript.
: The authors declare that they have no competing interests.