Funding for this research was provided by:
Shandong Province Key R&D Plan (2016GSF201019)
Academic promotion programme of Shandong First Medical University (2019QL025)
Latitudinal project of Shandong University (Grant No. 6020320001)
Jinan Science and Technology Innovation Program of Clinical Medicine (Grant No. 201705072)
Received: 27 November 2020
Accepted: 7 April 2021
First Online: 6 May 2021
: The study was approved by the Ethics Committee of the Central Hospital of Fengxian District (Approval number: No. KY201604) and conducted according to the 1995 Declaration of Helsinki (as revised in Fortaleza, Brazil, October 2013). Inform written consents were obtained from all participants.
: Not Applicable.
: The authors declare that they have no conflicts of interest associated with this article. No benefits in any form have been received or will be received from a commercial party related directly or indirectly to the subject of this paper.