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.
The SFAR cutoff value. Operator characteristic curve of SFAR for AR (n = 268) (a); Youden's index according to different SFAR for AR (n = 268) (b); graph of sensitivity and specificity of SFAR for AR (n = 268) (c). SFAR, Score for Allergic Rhinitis; AR, allergic rhinitis.
