Funding for this research was provided by:
National Natural Science Foundation of China (81802497, 81672507)
Guangdong Science and Technology Department (2017B030314026)
Guangzhou Municipal Science and Technology Project (201803010045)
Fundamental Research Funds for Central University (19ykpy115)
Text and Data Mining valid from 2020-01-28
Received: 20 June 2019
Accepted: 23 December 2019
First Online: 28 January 2020
Ethics approval and consent to participate
: The present study was approved by the Hospital’s Protection of Human Subjects Committee.
: Not applicable.
: The authors have no commercial or other associations that might pose a conflict of interest.