Funding for this research was provided by:
National Natural Science Foundation of China (81972653)
Natural Science Foundation of the Jiangsu Higher Education Institutions of China (16KJA180006)
Natural Science Foundation of Jiangsu Province (BK20160224)
Xuzhou Jinlonghu Distinguished Talents Program (N/A)
Research Foundation of Xuzhou Medical University (D2016031, D2019015, D2019019)
Xuzhou Science and Technology Innovation Program (KC19021)
Received: 12 September 2019
Accepted: 10 February 2020
First Online: 18 February 2020
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Xuzhou Medical University.
: All authors give consent for the publication of the manuscript
: The authors declare that they have no competing interests.