Funding for this research was provided by:
the Joint Project by the Third Affiliated Hospital of Zhengzhou University and Health Commission of Henan Province (LHGJ20190400)
Received: 2 July 2020
Accepted: 29 October 2020
First Online: 10 November 2020
Ethics approval and consent to participate
: Administrative permissions were obtained from the Ethics Committee of the Third Affiliated Hospital of Zhengzhou University to access the medical files described in the study.This study was approved by.
: Not applicable.
: All authors declare no conflicts of interest with regard to this study.