Kong, Dongdong
Fu, Xiuyi
Jia, Xiaohui
Wang, Wenhui
Li, Yi
Li, Jiansheng
Yang, Xiaohong
Ju, Chuanli
Funding for this research was provided by:
Natural Science Foundation of Beijing Municipality (6172002, 6172002, 6172002, 6172002, 6172002, 6172002, 6172002)
National Natural Science Foundation of China (31770296, 31770296, 31770296, 31770296, 31770296, 31770296, 31770296)
Beijing Municipal Commission of Education (19530050120)
Article History
Received: 29 July 2019
Accepted: 17 January 2020
First Online: 3 February 2020
Competing interests
: The authors declare no competing interests.