Bendstrup, E., Maher, T. M., Manali, E. D. and Wijsenbeek, M. (2015) “Challenges in the classification of fibrotic ILD”, Sarcoidosis, Vasculitis and Diffuse Lung Disease, 32(1S), pp. 4–9. Available at: https://www.mattioli1885journals.com/index.php/sarcoidosis/article/view/4694 (Accessed: 2 July 2022).