Funding for this research was provided by:
National Natural Science Foundation of China (61572116, 61502089, 61572117)
National key Technology R&D Program of the Ministry of Science and Technology (2015BAH09F02)
Provincial Scientific and Technological Project (2015302002)
Special Fund for Fundamental Research of Central Universities of Northeastern University (N150408001, N150404009)
Text and Data Mining valid from 2019-04-09
First Online: 9 April 2019
Compliance with ethical standards
: The authors declare that they have no competing interests.
: This article does not contain any studies with human participants or animals performed by any of the authors.