Zhang, Yan
Li, Mu
Jiang, Hong
Shi, Huijing
Xu, Biao
Atkins, Salla
Qian, Xu
Funding for this research was provided by:
Shanghai Municipal Health Commission (GWIV-31)
Article History
Received: 17 May 2019
Accepted: 14 August 2019
First Online: 22 August 2019
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board of the School of Public Health, Fudan University, Shanghai, China. All participants provided the written informed consents.
: Not applicable.
: The authors declare that they have no conflict of interests.