Lee, Young Seok, Ho Cheol Kim, Bo Young Lee, Chang Keun Lee, Mi-Young Kim, Se Jin Jang, Hye Sun Lee, Jieun Moon, Thomas V. Colby, and Dong Soon Kim. “The Value of Biomarkers As Predictors of Outcome in Patients With Rheumatoid Arthritis-Associated Usual Interstitial Pneumonia”. Sarcoidosis, Vasculitis and Diffuse Lung Disease 33, no. 3 (October 7, 2016): 216–223. Accessed January 16, 2022. https://mattioli1885journals.com/index.php/sarcoidosis/article/view/4804.