Li, Hong
Gao, Yizhi
Ren, Chenchen
Article History
Received: 14 June 2021
Accepted: 18 August 2021
First Online: 30 August 2021
Declarations
:
: All procedures performed in this involving human patients were in accordance with the ethical standards of the the Third Affiliated Hospital of Zhengzhou University (Protocol No. 2018-01167) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual patients included in the study.
: The authors declare no competing interests.