Funding for this research was provided by:
National Natural Science Foundation of China (81702846, 81802894, 81502488)
Text and Data Mining valid from 2019-11-27
Received: 9 June 2019
Accepted: 12 November 2019
First Online: 27 November 2019
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of Shanghai Jiao-tong University and the Ethics Committee of Fudan University (Shanghai, China).
: All authors agree on publication of the results of the present manuscript.
: The authors declare that they have no competing interest.