Funding for this research was provided by:
National Natural Science Foundation of China (81400862, 81401606)
the Key Project in the Science & Technology Program of Sichuan Province (19ZDYF1454)
Science Foundation for Excellent Youth Scholars of Sichuan University (2015SU04A15)
the 1·3·5 project for disciplines of excellence–Clinical Research Incubation Project, West China Hospital, Sichuan University (2019HXFH056)
Article History
Received: 24 October 2019
Accepted: 10 February 2020
First Online: 14 February 2020
Ethics approval and consent to participate
: Not applicable
: Not applicable
: The authors declare that they have no competing interests.