Funding for this research was provided by:
National Natural Science Foundation of China (No. 81972172)
Shanghai Municipal Health Commission (No. 2017BR026)
Shanghai Education Development Foundation (No. 17SG23)
Shanghai Hospital Development Center (No. SHDC12017X03)
Article History
Received: 8 January 2020
Accepted: 28 April 2020
First Online: 7 May 2020
Ethics approval and consent to participate
: Since this was a retrospective study and all data used in our study collected from GEO database (), ethical approval was not required.
: None.
: The authors declare that they have no competing interests.