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Authors
Zhang, You-ming
Gao, Jian-ming
Zhou, Hong
Li, Li
Liu, Li-zhi
Han, Zai-de
Yi, Xiao-ping
Liao, Wei-hua
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Article History
First Online: 1 July 2019
Compliance with ethical standards
: All procedures performed in this study of human participants were in accordance with the ethical standards of the institutional review board and the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all participants. The study was approved by the Medical Research Ethics Committee of Xiangya Hospital, Central South University, People’s Republic of China.
: The authors declare that they have no conflicts of interest associated with this study.
