Quadruple overlapping autoimmune diseases manifested as sarcoidosis with mediastinal lymphadenopathy: a case report. Sarcoidosis Vasc Diffuse Lung Dis [Internet]. 2023 Dec. 20 [cited 2024 Jun. 30];40(4):e2023051. Available from: https://mattioli1885journals.com/index.php/sarcoidosis/article/view/14401