Li, Zhang
Zhong, Zheng
Li, Yang
Zhang, Tianyu
Gao, Liangxin
Jin, Dakai
Sun, Yue
Ye, Xianghua
Yu, Li
Hu, Zheyu
Xiao, Jing
Huang, Lingyun
Tang, Yuling
Funding for this research was provided by:
National Natural Science Foundation of China (No.61801491)
Natural Science Foundation of Hunan Province (No.2019JJ50728)
Health and Family Planning Commission of Hunan Province (No.B20180393)
Science and Technology Bureau of Changsha (No. kq2001001)
Article History
Received: 28 May 2020
Accepted: 18 June 2020
First Online: 18 July 2020
Compliance with ethical standards
:
: The scientific guarantor of this publication is Prof. Tang Yuling (Department of Respiratory Medicine, The First Hospital of Changsha City, Changsha, China. Email: tyl71523@qq.com).
: The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.
: No complex statistical methods were necessary for this paper.
: Written informed consent was waived by the Institutional Review Board.
: Institutional Review Board approval was obtained.
: • retrospective• diagnostic or prognostic study• performed at one institution
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