RT Journal Article SR Electronic T1 The Prevalence and Burden of Interstitial Lung Diseases in the United States JF ERJ Open Research JO erjor FD European Respiratory Society SP 00630-2021 DO 10.1183/23120541.00630-2021 A1 Niranjan Jeganathan A1 Matheni Sathananthan YR 2021 UL http://openres.ersjournals.com/content/early/2021/11/25/23120541.00630-2021.abstract AB