Funding for this research was provided by:
National Natural Science Foundation of China (81970811)
Tibet Natural Science Foundation of China (XZ2017ZR-ZYZ09)
Natural Science Foundation of Shanghai Municipal Commission of Health and Family Planning (201740001)
Natural Science Foundation of Jingan District Municipal Commission of Health and Family Planning of Shanghai (2018MS12)
Training Program for Academic Leaders of Jingan District Municipal Commission of Health and Family Planning of Shanghai (2016084)
Article History
Received: 29 September 2019
Accepted: 3 December 2019
First Online: 19 December 2019
Ethics approval and consent to participate
: This protocol was approved by the Ethics Committee of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine. All patients were informed according to the World Medical Association Declaration of Helsinki, and the written informed consent was obtained from all participants.
: Not applicable.
: The authors declare that they have no competing interests.