Yin, H.
Qin, C.
Zhao, Y.
Du, Y.
Sheng, Z.
Wang, Q.
Song, Q.
Chen, L.
Liu, C.
Xu, T.
Funding for this research was provided by:
National Natural Science Foundation of China (81472393)
Beijing Municipal Natural Science Foundation (7152149)
Article History
Received: 23 November 2016
Accepted: 27 February 2017
First Online: 3 March 2017
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Informed consent was obtained from all individual participants included in the study.
: For this type of study formal consent is not required. This article does not contain any studies with animals performed by any of the authors.