Funding for this research was provided by:
National Natural Science Foundation of China (81300686)
Key Technology Research and Development Program of Shandong (2018GSF118184)
Received: 11 July 2020
Accepted: 14 October 2020
First Online: 22 October 2020
Ethics approval and consent to participate
: This study was conducted in accordance with the Declaration of Helsinki and was approved by the local Ethical and Research Committee of Jinan Central Hospital (No. 2017–077-02, Shandong, China). Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.