Bourbonnais, J.M., and L. Samavati. 2010. “How to Build a Biomarker: IL-7 and Acute Exacerbation of IPF”. Sarcoidosis, Vasculitis and Diffuse Lung Diseases 27 (2): 96-102. https://mattioli1885journals.com/index.php/sarcoidosis/article/view/2574.