Fig. 4.
Perioperative changes in dorsal fraction of ventilation. Bars indicate the mean and SD. *P < 0.05 compared with awake preoperative (within-group comparison). §P < 0.05 compared with control ventilation group (between-group comparison).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.