Funding for this research was provided by:
National Natural Science Foundation of China (62002320)
Fundamental Research Funds for the Central Universities (2020QNA5010)
National Natural Science Foundation of China (61771329)
Central Funds Guiding the Local Science and Technology Development (206Z5001G)
Article History
Received: 29 September 2020
Accepted: 16 January 2021
First Online: 15 February 2021
Compliance with ethical standards
:
: We wish to draw the attention of the Editor to the following facts which may be considered as potential conflict of interest and to significant financial contributions to this work. We wish to confirm that there are no known conflicts of interest associated with this publication and there has been no significant financial support for this work that could have influenced its outcome.
: We confirm that the manuscript has been read and approved by all named authors. We further confirm that the order of authors listed in the manuscript has been approved by all of us. The roles of all authors are listed as follows: Zhong Ji contributed to conceptualization and writing—review. Biying Cui contributed to software and writing—original draft. Yunlong Yu (Corresponding author) contributed to methodology and supervision. Yanwei Pang contributed to writing—review and editing. Zhongfei Zhang contributed to writing—review and editing.