Kitamura, A., Y. Takiguchi, and K. Kurosu, et al. 2012. “Feasibility of Cytological Diagnosis of Sarcoidosis With Endobronchial US-Guided Transbronchial Aspiration”. Sarcoidosis, Vasculitis and Diffuse Lung Diseases 29 (2): 82-89. https://mattioli1885journals.com/index.php/sarcoidosis/article/view/2501.