Funding for this research was provided by:
National Natural Science Foundation of China (81460169)
Text and Data Mining valid from 2019-01-08
Received: 6 September 2018
Accepted: 4 December 2018
First Online: 8 January 2019
Ethics approval and consent to participate
: All procedures of the investigation were carried out following the rules of the Declaration of Helsinki, seventh revision (2013).The study design was approved by the Ethics Committee of the First Affiliated Hospital, Guangxi Medical University (No: Lunshen-2014-KY-Guoji-001; March 7, 2014). Informed consent was obtained from all participants.
: None applicable.
: The authors declare no competing financial and/or non financial interests.
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