Drent, Marjolein, Marcel Veltkamp, and Aalt Bast. “The Mystery of Black Pete Make-Up: A Sarcoid-Like Foreign-Body Reaction”. Sarcoidosis, Vasculitis and Diffuse Lung Diseases 36, no. 2 (June 6, 2019): 172–173. Accessed July 18, 2024. https://mattioli1885journals.com/index.php/sarcoidosis/article/view/8329.