Hou, Anli
Zhang, Yali
Zheng, Yi
Fan, Yujuan
Liu, Huilan
Zhou, Xiuying
Article History
Received: 15 May 2019
Accepted: 16 July 2019
First Online: 6 August 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: University of Chinese Academy of Sciences Shenzhen Hospital Ethics Committee approved this study. All procedures performed in studies involving human participants were in accordance with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Written informed consent was obtained from all individual participants included in the study.