Funding for this research was provided by:
Jilin Scientific and Technological Development Program (20180520055JH)
Article History
Received: 19 November 2019
Accepted: 29 January 2020
First Online: 5 February 2020
Ethics approval and consent to participate
: This research was approved by the independent ethics committee of Jilin University, Changchun, P.R. China, and all patients provided written informed consent, in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.