Funding for this research was provided by:
Youth Research Fund from Fujian Provincial Health Bureau (2015?1-98)
Startup Fund for scientific research from Fujian Medical University (2017XQ1117)
Text and Data Mining valid from 2019-02-07
Received: 13 November 2018
Revised: 21 January 2019
Accepted: 26 January 2019
First Online: 7 February 2019
Compliance with ethical standards
: This article does not contain any studies with human participants performed by any of the authors.
: The authors declare that they have no conflict of interest.