Funding for this research was provided by:
National Natural Science Foundation of China (81572962)
the Programme of Introducing Talents of Discipline to Universities (B14035)
Innovation Team Development Plan of the Ministry of Education (No. IRT_17R110)
National Key R&D Program of China (2016YFC0902000)
the Sun Yat-Sen University Cultivating Foundation (16ykpy29)
Text and Data Mining valid from 2018-08-06
Received: 18 May 2018
Accepted: 25 July 2018
First Online: 6 August 2018
Ethics approval and consent to participate
: The clinical research committee of the study institute approved the study protocol, and written informed consent was waived by the Institutional Review Board.
: Not applicable.
: The authors declare that they have no competing interests.
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