Funding for this research was provided by:
National Social Science Foundation of China (15BJL003)
Shanghai Philosophy and Social Science Planning Project (2014BJL002)
Research Foundation of Shanghai Municipal Development and Reform Commission of 2018
Scientific Research Foundation of Outstanding Young Teachers of Shanghai Jiao Tong University and SMC of 2016
Urban Governance Foundation in Humanities and Social Sciences in Shanghai Jiao Tong University (16JCCS16)
Text and Data Mining valid from 2020-02-27
Received: 8 April 2019
Accepted: 18 February 2020
First Online: 27 February 2020
Ethics approval and consent to participate
: The study received ethical approval from the Ethics Committee of Shanghai Jiao Tong University. Consent to participate was also obtained from study participants in the community.
: Not applicable.
: The authors declare that they have no competing interests.