Funding

No funding was received for the publication of this article.

Authorship

All named authors meet the International Committee of Medical Journal Editors (ICMJE) criteria for authorship for this article, take responsibility for the integrity of the work as a whole, and have given their approval for this version to be published.

Author Contribution

All authors have made substantial contributions to this work. Please see the specific contribution of each author as following. Authors’ contributions: Bo Li and Xuan Wang conducted the research and wrote this manuscript. Shuchang Xu designed the idea of the article. Junqing Yan and Jincheng Pu collected relevant data. Jianping Tang has embellished and revised the article. This article has been reviewed and revised by all members.

Disclosures

Bo Li, Xuan Wang, Shuchang Xu, Junqing Yan, Jincheng Pu, Jianping Tang declare that they have nothing to disclose.

Compliance with Ethics Guidelines

This article is based on previously conducted studies and does not contain any new studies with human participants or animals performed by any of the authors.