Corte, T.J., R. Ellis, and E.A. Renzoni, et al. 2009. “Use of Intravenous Cyclophosphamide in Known or Suspected, Advanced Non-Specific Interstitial Pneumonia”. Sarcoidosis, Vasculitis and Diffuse Lung Diseases 26 (2): 132-38. https://mattioli1885journals.com/index.php/sarcoidosis/article/view/2599.