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.
Precursor protein of collagen III in the small airways of non-smokers, smokers and the patients with COPD. The subepithelial area with positive staining for precursor protein of collagen III was thinner in severe COPD compared to non-smokers (p = 0.017), smokers (p = 0.045) and patients with stage I-II COPD (p = 0.012).
