Yuan, Ruiyi
Yi, Junfei
Xie, Zhiying
Zheng, Yimeng
Han, Miao
Hou, Yue
Wang, Zhaoxia
Yuan, Yun
Funding for this research was provided by:
Ministry of Science and Technology of the People's Republic of China (2011ZX09307-001-07)
Beijing Council of Science and Technology (Z151100003915126)
Article History
Received: 21 November 2017
Revised: 23 May 2018
Accepted: 1 June 2018
First Online: 5 July 2018
Compliance with ethical standards
:
: The work described here has not been published previously, nor is it under consideration for publication elsewhere. This publication has been approved by all the authors and by the responsible authority where the work was carried out. If this paper is accepted, it will not be published elsewhere in the same form or in any other language, without the written consent of the copyright-holder. The authors declare that they have no conflict of interest.