Li, Xiaohong
Shen, Jay J.
Yao, Fang
Jiang, Chunxin
Chang, Fengshui
Hao, Fengfeng
Lu, Jun
Funding for this research was provided by:
National Natural Science Foundation of China (71573049)
Article History
Received: 6 February 2017
Accepted: 27 April 2018
First Online: 11 May 2018
Ethics approval and consent to participate
: This study obtained ethical approval (IRB #09–03-0158) from the Medical Research Ethics Committee, School of Public Health, Fudan University (IRB00002408 & FWA00002399). Completion of the survey was considered implied consent to participate.
: The authors declare that they have no competing interests.
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