Xu, Ke
Qi, Hong http://orcid.org/0000-0002-5667-4106
Peng, Rongmei
Xiao, Gege
Hong, Jing
Hao, Yansheng
Ma, Boping
Funding for this research was provided by:
National Natural Science Foundation of China (81570813)
Article History
Received: 27 January 2018
Accepted: 3 October 2018
First Online: 17 October 2018
Ethics approval and consent to participate
: The investigation was performed according to the tenets of the Declaration of Helsinki. The need for informed consent was waived and the study protocol was approved by Peking University Third Hospital Medical Science Research Ethics Committee.
: Not applicable. No personal information is included in this study.
: The authors declare that they have no competing interests.
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