Funding for this research was provided by:
National Natural Science Foundation of China (81401606)
National Natural Science Foundation of China (81400862)
Department of Science and Technology of Sichuan Province (19ZDYF1454)
Sichuan University (2015SU04A15)
West China Hospital of Sichuan University (2019HXFH056)
Article History
Received: 3 September 2019
Accepted: 23 October 2019
First Online: 4 November 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.