Yu, Hongjun
Takeuchi, Hideyuki
Takeuchi, Megumi
Liu, Qun
Kantharia, Joshua
Haltiwanger, Robert S
Li, Huilin
Article History
Received: 16 December 2015
Accepted: 16 May 2016
First Online: 18 July 2016
Competing interests
: The authors declare no competing financial interests.