Funding for this research was provided by:
National Natural Science Foundation of China (91746205)
National Key R&D Program of China (2017YFC1001900)
Text and Data Mining valid from 2019-12-01
Received: 21 August 2019
Accepted: 25 November 2019
First Online: 3 December 2019
Ethics approval and consent to participate
: All participants gave written informed consent prior the study, and the protocol was authorized by the Human Ethics Committee of Tianjin Medical University.
: Not applicable.
: The authors declare no competing interests.