Funding for this research was provided by:
The Technology Project of the Department of Health of Jilin Province (20165044)
The National Key Research and Development Program of China (2017YFC0108602)
Article History
Received: 14 April 2019
Accepted: 9 July 2019
First Online: 26 July 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.