Funding for this research was provided by:
Medical Science and Technology Projects of Henan Province (LHGJ20190958, LHGJ20210629)
Article History
Received: 15 May 2023
Accepted: 9 November 2023
First Online: 4 December 2023
Declarations
:
: The authors of this article have no conflicts of interest or any direct or indirect financial interests.
: The study was approved by the Ethics Committee of Children's Hospital Affiliated to Zhengzhou University. This retrospective study did not involve any personal private information of the patients and only statistical analysis of the available test data was performed. The committee waived the need for individual informed consent.
: This was a retrospective study, no consent needed. All co-authors declare that the work described is original research that has not been published previously, and not under consideration for publication elsewhere, in whole or in part. All the authors listed have approved the manuscript to be published.