Funding for this research was provided by:
National Natural Science Foundation of China (81371963)
Text and Data Mining valid from 2019-12-01
Received: 1 July 2019
Accepted: 25 September 2019
First Online: 19 December 2019
Ethics approval and consent to participate
: Our study has been approved by the Ethics committee of Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine.
: Consent for publication was obtained from all participants.
: The authors declare that they have no competing interests.