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.
Classification of interstitial lung diseases. AIP = acute interstitial pneumonia; COP = cryptogenic organizing pneumonia; CTD = connective tissue disease; DIP = desquamative interstitial pneumonia; MCTD = mixed connective tissue disease; NSIP = nonspecific interstitial pneumonia; RA = rheumatoid arthritis; RB-ILD = respiratory bronchiolitis–associated interstitial lung disease; SLE = systemic lupus erythematosus. Adapted by permission from Reference 52.
