Yu, Bilian
Li, Xin
Chen, Jin
Ouyang, Mingqi
Zhang, Hong
Zhao, Xinge
Tang, Liang
Luo, Qin
Xu, Min
Yang, Lizhen
Huang, Guxiang
Liu, Xianling
Tang, Jianjun
Article History
First Online: 10 June 2020
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: The study was conducted in accordance with the principles of the Declaration of Helsinki and approved by the Medical Ethics Committee of the Second Xiangya Hospital of Central South University.
: The requirement for informed patient consent was waived by the Ethics Committee for this retrospective study that evaluated de-identified data involving no potential risk to patients and no link between the patients and the researchers.
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