An official website of the United States government
Here's how you know
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.
Estimated average response in outcome (PaO2 at rest, (A-a)PaO2 at rest, DLCO, maximum work load) as a function of years from first exposure for non-smokers within the cohort: CBD (solid) and BeS (dashed). Estimates are based on mixed model fits. Vertical bars extend±1SE from the average.