Wan, Bingbing
Tang, Ting
Upton, Heather
Shuai, Jin
Zhou, Yuanzhe
Li, Song
Chen, Juan
Brunzelle, Joseph S
Zeng, Zhixiong
Collins, Kathleen
Wu, Jian
Lei, Ming
Article History
Received: 5 August 2015
Accepted: 19 October 2015
First Online: 9 November 2015
Competing interests
: The authors declare no competing financial interests.