Funding for this research was provided by:
National Natural Science Foundation of China (81803091)
Text and Data Mining valid from 2019-11-15
Received: 17 September 2019
Accepted: 6 November 2019
First Online: 15 November 2019
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Zhongshan Hospital, Fudan University (B2013-106R). All study participants were included in the study after giving written informed consent.
: Not applicable.
: The authors declare no conflicts of interest.