de Brouwer, Bart, Marcel Veltkamp, Carla A Wauters, Jan C Grutters, and Rob Janssen. 2015. “Propionibacterium Acnes Isolated from Lymph Nodes of Patients With Sarcoidosis”. Sarcoidosis, Vasculitis and Diffuse Lung Diseases 32 (3): 271-74. https://mattioli1885journals.com/index.php/sarcoidosis/article/view/3999.