Funding for this research was provided by:
National Natural Science Foundation of China (81502160)
Jiangsu Provincial Medical Youth Talent (QNRC2016785)
The Project of Invigorating Health Care through Science, Technology and Education (CXTDA2017034)
Text and Data Mining valid from 2018-10-17
Received: 16 August 2018
Accepted: 14 September 2018
First Online: 17 October 2018
Compliance with ethical standards
: The authors have declared that no competing interests exist.
: This study was performed under a protocol approved by the Institutional Review Boards of The Affiliated Hospital of Xuzhou Medical University.
: Informed consent was obtained from all individual participants included in the study.