Fang, Chuling, et al. “Effectiveness and Tolerability of Methotrexate in Pulmonary Sarcoidosis: A Single Center Real-World Study”. Sarcoidosis, Vasculitis and Diffuse Lung Diseases, vol. 36, no. 3, Sept. 2019, pp. 217-2, https://doi.org/10.36141/svdld.v36i3.8449.