Grabowska, Olga, Magdalena M Martusewicz-Boros, Dorota Piotrowska-Kownacka, and Elżbieta Wiatr. 2018. “A Case Report of Steroid Resistant Cardiac Sarcoidosis Successfully Managed With Methotrexate”. Sarcoidosis Vasculitis and Diffuse Lung Disease 35 (2), 178-81. http://mattioli1885journals.com/index.php/sarcoidosis/article/view/6554.