Schönfeld, N., K. Dirks, and U. Costabel, et al. “A Prospective Clinical Multicentre Study on Adult Pulmonary Langerhans’ Cell Histiocytosis”. Sarcoidosis, Vasculitis and Diffuse Lung Diseases 29, no. 2 (December 1, 2012): 132–138. Accessed January 31, 2025. https://mattioli1885journals.com/index.php/sarcoidosis/article/view/2508.