Funding for this research was provided by:
Natural Science Foundation of Hebei Province (H2019307108)
Project of Youth Science and Technology of Medical Science Research in Hebei Province (No. 20191706)
Received: 1 September 2020
Accepted: 14 October 2020
First Online: 8 November 2020
Change Date: 30 January 2021
Change Type: Correction
Change Details: An amendment to this paper has been published and can be accessed via the original article.
Ethics approval and consent to participate
: In the original article [CitationRef removed], Chen, et, al. declared the study was authorized by the Rich Healthcare Group Review Board and complied with the declaration of Helsinki. Considering that the study was retrospective, no participants were required to participate in any part of the study.
: Not applicable.