Ding, Chengyi
Wang, Jing
Cao, Yu
Pan, Yuting
Lu, Xueqin
Wang, Weiwei
Zhuo, Lin
Tian, Qinjie
Zhan, Siyan http://orcid.org/0000-0001-6980-3141
Funding for this research was provided by:
Bayer Healthcare Co. Ltd.
Article History
Received: 15 December 2017
Accepted: 25 January 2019
First Online: 4 February 2019
Ethics approval and consent to participate
: Ethical approval was granted by the Peking University Institutional Review Board. The objectives of the study were explained to the participants and their consent was obtained through a written informed consent document before soliciting information.
: Not applicable.
: The authors declare that they have no competing interests.
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