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.
Elastin to collagen-hyaluronan index is decreased in COPD patients. Elastin to Collagen-Hyaluronan index of controls, GOLD II and GOLD IV patients in alveolar walls (A) and small airway walls (B). Data were analysed using ANCOVA and results are expressed as means + SD; *P < 0.05 compared to control, **P < 0.05 compared to control and GOLD II.
