Liao, Er-Yuan
Zhang, Zhen-Lin
Xia, Wei-Bo
Lin, Hua
Cheng, Qun
Wang, Li
Hao, Yong-Qiang
Chen, De-Cai
Tang, Hai
Peng, Yong-De
You, Li
He, Liang
Hu, Zhao-Heng
Song, Chun-Li
Wei, Fang
Wang, Jue
Zhang, Lei
Article History
Received: 13 November 2017
Accepted: 15 May 2018
First Online: 3 July 2018
Ethics approval and consent to participate
: This study was approved by the independent ethics committees of 13 participating sites. A written informed consent was obtained in accordance with the principles and provisions of the International Conference on Harmonization-E6 Guideline for Good Clinical Practice, following country-specific consent requirements.
: Fang Wei, Jue Wang and Lei Zhang (MSD China Holding Co., Ltd) are employees of the study sponsor (Merck) at the time of study. Fang Wei and Lei Zhang own a stock in Merck. The other authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.