1.11. Analysis.
Comparison 1 Epidural analgesia compared with systemic analgesia, Outcome 11 Duration of tracheal intubation in hours (for studies for which means and standard deviations could be extracted).
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.