Funding for this research was provided by:
the Medical Science and Technology Research Project of Henan in China (LHGJ20190260)
Received: 2 May 2020
Accepted: 22 December 2020
First Online: 13 January 2021
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of the First Affiliated Hospital of Zhengzhou University (2018-KY-22). All patients provided written informed consent.
: Not applicable.
: The authors declare no competing interests.