Mirsaeidi, Mehdi, Hesham R Omar, Andrew Calzadilla, Ahmad El khatib, Philip Whitney, Nadera Sweiss, Daniel Culver, Michael Campos, Robert Baughman, and Roberto Machado. “Circulatory TGF- β1 Is Significantly Higher in Early Stage of Pulmonary Sarcoidosis”. Sarcoidosis Vasculitis and Diffuse Lung Disease 35, no. 3 (October 15, 2018): 213-217. Accessed July 12, 2020. https://www.mattioli1885journals.com/index.php/sarcoidosis/article/view/6112.