Document is current

Article History

Received: 7 July 2021

Revised: 11 October 2021

Accepted: 11 October 2021

First Online: 6 November 2021

Declarations

:

: I declare that there is no conflict of interest in the publication of this article, and that there is no conflict of interest with any other author or institution for the publication of this article.

: I hereby declare that this manuscript is the result of my independent creation under the reviewers’ comments. Except for the quoted contents, this manuscript does not contain any research achievements that have been published or written by other individuals or groups. I am the only author of this manuscript. The legal responsibility of this statement shall be borne by me.