Duan, Jun https://orcid.org/0000-0003-1685-0117
Wang, Shengyu
Liu, Ping
Han, Xiaoli
Tian, Yao
Gao, Fan
Zhou, Jing
Mou, Junhuan
Qin, Qian
Yu, Jingrong
Bai, Linfu
Zhou, Lintong
Zhang, Rui
Funding for this research was provided by:
Chongqing Health Commission Projects (2016MSXM157, 2017MSXM019)
Respiratory Prevention and Treatment Center of Shanxi Provincial Government (2016HXKF09)
Shanxi Province Key Program Fund (2017SF-256)
Article History
Received: 13 June 2019
Accepted: 21 September 2019
First Online: 30 September 2019
Ethics approval and consent to participate
: The Institutional Review Board of the First Affiliated Hospital of Chongqing Medical University approved the study. Informed consent was obtained from patients or their family members.
: All authors have reviewed and approved the manuscript for publication.
: The authors declare that they have no competing interests.