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Authors
Liu, Zhi-ming
Zhang, Heng
Ge, Ming
Hao, Xiao-lei
An, Xu
Tian, Yong-ji https://orcid.org/0000-0001-9915-8630
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Article History
Received: 22 August 2021
Accepted: 18 March 2022
First Online: 8 April 2022
Declarations
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: All procedures performed in studies involving human participants with the ethical standards of the institutional and/or national research committee by the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. This study was approved by Institutional Review Board of Beijing Tiantan Hospital, Capital Medical University and Institutional Review Board of Beijing Children’s Hospital, Capital Medical University. The use of clinical data and tumor tissue was reviewed in conformity with the institutional review boards.
: Legal guardians of all study participants provided informed written consent to participate.
: All individual case information was removed. The data was analyzed retrospectively after obtaining informed consent from legal guardians of all study participants.
: No potential conflicts of interest were disclosed.
