Funding for this research was provided by:
Clinical Research training program of Southern Medical University (LC2016PY032)
National Key R&D Program of China (2017YFC1310601)
The Guangzhou Healthcare Collaborative Innovation Major Project (201604020012)
Guangzhou Innovation and Entrepreneurship Education Project of Universities (201709T26)
Special Funds for the Cultivation of Guangdong College Students' Scientific and Technological Innovation (PDJHB0101)
Received: 3 July 2018
Accepted: 18 October 2018
First Online: 20 November 2018
Ethics approval and consent to participate
: Prior to its start, the study protocol was in accordance with the Declaration of Helsinki, and approved by the ethics committee of Zhujiang Hospital, Southern Medical University, Guangzhou, China. The reference number for the study is 2016-HXNK-005. Informed consents about the study procedures were signed and obtained from all the subjects before the trial.
: Not applicable
: The authors declare that they have no competing interests.
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