Correction to: BMC Anesthesiol 22, 71 (2022)

https://doi.org/10.1186/s12871-022-01599-4

Following publication of the original article [1], the authors reported an error in the affiliation 2.

The incorrect affiliation is: The Second School of Clinical Medicine, Southern Medical University, 106 Zhongshan Second Road, Yuexiu District, Guangzhou, Guangdong 510080, P.R. China.

The correct affiliation is: The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China.

The original article [1] has been updated.