Qi, Hongchao
Chen, Yue
Xu, Dongli
Su, Hualin
Zhan, Longwen
Xu, Zhiyin
Huang, Ying
He, Qianshan
Hu, Yi
Lynn, Henry
Zhang, Zhijie
Funding for this research was provided by:
National Natural Science Foundation of China (81673239)
National Science Fund for Distinguished Young Scholars (81325017)
Changjiang Scholar Program of Chinese Ministry of Education (T2014089)
Fourth Round of Three-Year Public Health Action Plan of Shanghai, China (15GWZK0202)
Article History
Received: 30 August 2017
Accepted: 12 January 2018
First Online: 31 January 2018
Ethics approval and consent to participate
: Approval for oral consent and other aspects of the surveys were granted by the Ethics Committee of Fudan University (ID: IRB#2011–03-0295).
: Not applicable.
: The authors declare that they have no competing interests.