Zheng, D.
Ye, X.
Zhang, M. Z.
Sun, Y.
Wang, J. Y.
Ni, J.
Zhang, H. P.
Zhang, L.
Luo, J.
Zhang, J.
Tang, L.
Su, B.
Chen, G.
Zhu, G.
Gu, Y.
Xu, J. F.
Article History
Received: 15 September 2015
Accepted: 13 January 2016
First Online: 12 February 2016
Competing interests
: Yes, there is potential competing financial interests. X.Y., M.Z., Y.S., G.Z. and Y.G. are employees of AstraZeneca during this study. Y.G. holds stock in AstraZeneca. D.Z. reported lecture fees from AstraZeneca, Eli Lilly, Novartis and Pfizer. J.N. reported lecture fees from Eli Lilly, AstraZeneca, Pfizer and F. Hoffman-La Roche. J.X. reported lecture fees from AstraZeneca, F. Hoffamn-La Roche, Eli Lilly and Pfizer. G.C. reported lecture fees from F. Hoffman-La Roche and Pfizer. All other authors declare no conflicts of interest.