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.
Saint George’s Respiratory Questionnaire (SGRQ) scale scores in the general population and in patients with early dcSSc
The vertical line over each bar represents the s.d. of the weighted average score. The mean SGRQ scores from the general population were obtained from Ferrer et al. [34].
