Sun, B.
Liu, J.
Yin, H.
Yang, S.
Liu, Z.
Chen, T.
Li, J.
Guo, C.
Jiang, Z. http://orcid.org/0000-0003-2495-0740
Article History
Received: 26 January 2018
Revised: 23 February 2018
Accepted: 19 March 2018
First Online: 12 April 2018
Compliance with ethical guidelines
:
: B. Sun, J. Liu, H. Yin, S. Yang, Z. Liu, T. Chen, J. Li, C. Guo, and Z. Jiang 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.