Yamaguchi, K., Tsushima, K., Kurita, N., Fujiwara, A., Soeda, S., Yamaguchi, A., Sugiyama, S., Togashi, Y., Kono, Y., Kasagi, S., & Setoguchi, Y. (2013). Clinical characteristics classified by the serum KL-6 level in patients with organizing pneumonia. Sarcoidosis, Vasculitis and Diffuse Lung Diseases, 30(1), 43-51. https://mattioli1885journals.com/index.php/sarcoidosis/article/view/2767