Hong, Shaodong
Fang, Wenfeng
Hu, Zhihuang
Zhou, Ting
Yan, Yue
Qin, Tao
Tang, Yanna
Ma, Yuxiang
Zhao, Yuanyuan
Xue, Cong
Huang, Yan
Zhao, Hongyun
Zhang, Li
Article History
Received: 14 August 2014
Accepted: 14 November 2014
First Online: 1 December 2014
Competing interests
: Yes there is potential Competing Interest. Li Zhang has received research support from Boehringer Ingelheim, Astra Zeneca, Lilly and Roche. Other authors declare no conflicts of interest.