Funding for this research was provided by:
National Natural Science Foundation of China (81602464, 81772688 and 81372698)
Natural Science Foundation of Jiangsu Province (BK20130212)
Postdoctoral Research Foundation of China (2013M540466)
Postdoctoral Science Foundation of Jiangsu Province (1301068C)
Six Talent Peaks Project in Jiangsu Province (SWYY-088)
Qinglan Project of Jiangsu Province of China (Baole ZHANG)
Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
Text and Data Mining valid from 2020-03-17
Received: 19 August 2019
Accepted: 2 March 2020
First Online: 17 March 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of the affiliated hospitals of Xuzhou University, and written informed consent was obtained from all subjects.
: Not applicable.
: The authors declare that they have no competing interests.