4.2. Analysis.
Comparison 4 Intrabronchial valves versus medical therapy, Outcome 2 RV change from baseline (L, end of follow‐up, intrabronchial valves).
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.