Background: Ever since Katzenstein and Fiorelli introduced the term nonspecific interstitial pneumonia (NSIP) to denote those cases of interstitial pneumonia that cannot be categorized as any of the other types of idiopathic interstitial pneumonias (IIP). there has been continuing debate on whether it is a real clinical entity or not. The American Thoracic Society/European Respiratory... https://leoners.shop/product-category/dryer/