Funding for this research was provided by:
National Natural Science Foundation of China (81772555, 81802352)
National Science Foundation for Distinguished Young Scholars of China (81625016)
Shanghai Sailing Program (17YF1402500)
Text and Data Mining valid from 2019-08-29
Received: 20 January 2019
Accepted: 31 July 2019
First Online: 29 August 2019
Ethics approval and consent to participate
: The study was approved by the FUSCC and the Institutional Research Ethics Committees. Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.