Funding for this research was provided by:
Project of Shanghai Foundation for Senior Citizens (S15027)
Construction Project of Key Discipline of Public Health in Shanghai (12GWZX1001)
Science and Technology Project of Pudong New Area Commission of Health and Family Planning (PW2015C-25)
Shanghai Municipal Commission of Health and Family Planning, Key Developing Disciplines (2015ZB0601)
Text and Data Mining valid from 2019-01-18
Received: 20 July 2018
Accepted: 8 January 2019
First Online: 18 January 2019
Ethics approval and consent to participate
: The study protocol was approved by the Ethics Committee of Zhongshan Hospital of Fudan University (B2016–029). Written informed consent was obtained from all the participants.
: Written informed consent was obtained to publish from all the participants to report individual patient data.
: The authors declare that they have no competing interests.
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