Funding for this research was provided by:
National Natural Science Foundation of China (81503317, 81303287)
Guangdong Provincial Project of Science and Technology (2016A020215133)
Hospital Project of Science and Technology (YN2015MS12)
Text and Data Mining valid from 2019-07-08
Received: 18 February 2019
Accepted: 28 June 2019
First Online: 8 July 2019
Ethics approval and consent to participate
: This study protocol was reviewed and approved by the Institutional Review Board at the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, and all participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.