Funding for this research was provided by:
Key Technologies Research and Development Program (No. 2016YFC1302204, 2017YFC1308600)
Ministry of National Defense, People's Republic of China (81672502)
Article History
Received: 6 August 2019
Accepted: 3 October 2019
First Online: 19 October 2019
Compliance with ethical standards
:
: MNA declares that he has no conflict of interest. SK declares that she has no conflict of interest. HC declares that she has no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.
: For this type of study, formal consent is not required.