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.
Correlation between anemia parameters and the Visual Analog Scale (VAS) score in 12 COPD patients treated with ESAs and intravenous iron. A. Correlation between the delta hemoglobin (Hb) and delta VAS. B. Correlation between the delta hematocrit (Hct) and delta VAS.
