Funding for this research was provided by:
National Natural Science Foundation of China (81500732)
Article History
Received: 6 September 2020
Accepted: 16 March 2021
First Online: 3 April 2021
Declearations
:
: Xiaoli Wu, Yingying Liu and Yun Ji declared that they have no conflict of interest.
: This study had been approved by the Shandong Rongjun General Hospital. Informed consent was obtained from all individual participants included in the study.