Funding for this research was provided by:
National Natural Science Foundation of China (81870563)
Six Talent Peaks Project in Jiangsu Province (YY-079)
Jiangsu Provincial Special Program of Medical Science (BE2017614)
Youth Medical Talents of Jiangsu Province (QNRC2016062)
Nanjing Medical University grant (2017NJMU123)
Text and Data Mining valid from 2019-02-08
First Online: 8 February 2019
Compliance with ethical standards
: The authors declare that there is no potential conflict of interests regarding the publication of this paper.
: The current study was approved by the Research Ethics Committee of the Nanjing Medical University.
: Informed consent was obtained from all individual participants included in the study.