Tang, Qing-hui
Guo, Xiao-Gang
Ma, Jian
Funding for this research was provided by:
National Natural Science Foundation of China (81670309)
Article History
Received: 22 April 2022
Accepted: 21 July 2022
First Online: 10 August 2022
Declarations
:
: The retrospective study was approved by the Ethics Committee of the Fuwai Hospital (No. 2016–829) according to the Helsinki Declaration.
: Written informed consent was provided by all participants or their legal guardians. All methods were performed in accordance with the relevant guidelines and regulations of the Declaration of Helsinki.
: The authors declare no competing interests.