Funding for this research was provided by:
National Natural Science Foundation of China (81377249)
Guangdong Science and Technology Department (2016A020213005, 2017A020215043)
Guangzhou Science, Technology and Innovation Commission (201704020216)
Clinical Research Project of Southern Medical University (LC2016ZD027)
Text and Data Mining valid from 2019-05-22
Received: 2 December 2018
Accepted: 2 May 2019
First Online: 22 May 2019
Ethics approval and consent to participate
: The study was approved by the ethical review board of Zhujiang Hospital (Guangzhou, China).
: Not applicable.
: The authors declare that they have no competing interests.
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