Funding for this research was provided by:
Natural Science Foundation of Henan Province (162300410265)
Article History
Received: 1 September 2021
Accepted: 16 December 2021
First Online: 2 February 2022
Declarations
:
: The study was performed according to the Declaration of Helsinki and was approved by the Institutional Ethics Committee of the Department of Medicine of the First Affiliated Hospital of Zhengzhou University. Informed consent in writing was obtained from the parents or guardians before the initiation of this study. All serum and bone marrow samples were discarded after clinical use.
: Not applicable.
: The authors declare no conflict of interest.