Zhang, Chao https://orcid.org/0000-0003-3726-4985
Article History
Received: 19 September 2020
Accepted: 4 January 2021
First Online: 14 January 2021
Change Date: 1 April 2021
Change Type: Update
Change Details: The original article was revised to correct the affiliation.
Change Date: 14 April 2021
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/s12873-021-00441-3
Ethics approval and consent to participate
: The designed protocol (PLA151720 dated August 6, 2020) was approved by the human ethics committee of the Chinese PLA General Hospital and the Chinese society of critical care medicine. An informed consent form was signed by patients and relatives (legally authorized person) of the enrolled patients regarding anesthesia and intubation (if required) before admission to the hospital. The study reporting adheres to the law of China and the V2008 Declarations of Helsinki.
: None.
: The authors declared that they have no conflict of interest or any other competing interest regarding results and/ or discussion reported in the research.