Funding for this research was provided by:
National Natural Science Foundation of China (81701289)
the National Key Technology R&D Program of China (2014BAI04B05)
Text and Data Mining valid from 2019-11-27
Received: 18 August 2019
Accepted: 16 November 2019
First Online: 27 November 2019
Ethics approval and consent to participate
: The study protocol was approved by the Medical Ethics Committee of Huashan Hospital, Fudan University, and informed consent was obtained from each patient.
: Not applicable.
: The authors declare that they have no competing interests.