Funding for this research was provided by:
Young Scientists Fund (81703896))
Beijing Science and Technology Planning Project (Z171100001017209)
Capital Foundation of Medical Development (2016-2-4062)
Text and Data Mining valid from 2020-03-05
Received: 5 October 2019
Accepted: 13 February 2020
First Online: 5 March 2020
Ethics approval and consent to participate
: After obtaining institutional ethics committee approval, this study was conducted in the China-Japan Friendship Hospital (No. 2013-SF-1), and written informed consent was obtained from each patient.
: Not applicable.
: The authors declare that they have no competing interests.