Funding for this research was provided by:
National Key Research and Development Program of China, Precision Medicine Project (2017YFC0907001)
Shanghai Municipal Education Commission-Gaofeng Discipline Development Project for Public Health and Preventive Medicine (No. 17)
Received: 11 April 2020
Accepted: 27 July 2020
First Online: 5 August 2020
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committee of the Fudan University, School of Public Health (IRB#2016-04-0586) and complied with the principles of the Declaration of Helsinki. Informed written consents were obtained from all participants before data collection.
: Not Applicable.
: The authors have no conflicts of interest to declare.