Funding for this research was provided by:
Henan Province Medical Science and Technology Project (SB201902005)
Received: 7 December 2020
Accepted: 17 March 2021
First Online: 25 March 2021
: The signed informed consent of all the patients was obtained for the publication of this study and any accompanying images. The Ethics Committee of the Affiliated Hospital of Zhengzhou University has approved of this study.
: Not applicable.
: The authors declare that they have no competing interests.