Funding for this research was provided by:
Beijing Advanced Innovation Center for Imaging Technology
National Natural Science Foundation of China (31670725, 91730301)
Article History
Received: 26 August 2019
Revised: 23 January 2020
Accepted: 24 February 2020
First Online: 17 March 2020
Compliance with Ethical Standards
:
: The author states that the present manuscript presents no conflict of interest.