Gan, Weiqiang
Li, Jianguo
Zhang, Chunlan
Chen, Xuefu
Lin, Chaoshuang
Gao, Zhiliang
Article History
Received: 23 August 2020
Accepted: 19 November 2020
First Online: 7 December 2020
Ethics approval and consent to participate
: This study conformed to the ethics principles of the Declaration of Helsinki and Good Clinical Practice and to the regulatory requirements of China. It also obtained ethical approval from the Institutional Review Board (IRB) of the Third Affiliated Hospital of Sun-Yat-Sen University, IRB of Guangdong General Hospital and IRB of the Eighth People’s Hospital of Guangzhou. ([2011]2–49). This study was registered on clinicaltrials.gov on January 31, 2012 and the identifier was NCT01521975. Written informed consent have been obtained from all participants.
: Not Applicable.
: All authors declare that they have no competing interest.