Funding for this research was provided by:
National Natural Science Foundation of China (71233008, 71774167, 71673291, 71303248)
Joint Research Project of Major Disease of Shanghai Health System (2013ZYJB0006)
Major Project in the ‘12th Five-Year Plan’ of the People’s Liberation Army (AWS12J002)
Shanghai Pujiang Program (19PJC112)
Received: 12 November 2019
Accepted: 7 May 2020
First Online: 3 June 2020
Ethics approval and consent to participate
: Not applicable. Because all data were from published statistics yearbook and literatures.
: Not applicable.
: The authors declare that they have no competing interests.