Funding for this research was provided by:
Shanxi Health Commission (201601046)
the PhD Foundation of the Second Hospital of Shanxi Medical University (201701-8)
Key Research and Development (R&D) program of Shanxi Province (201903D421065)
Article History
Received: 2 November 2019
Accepted: 2 September 2020
First Online: 10 September 2020
Compliance with ethical standards
:
: The authors declare no competing interests.
: Ethical approval was obtained for all studies included in this analysis.