Sharma, O.P., and I.C. Papanikolaou. 2009. “Lupus Pernio: A Tale of Four Characters in Search of a Malady”. Sarcoidosis, Vasculitis and Diffuse Lung Diseases 26 (2): 167-71. https://mattioli1885journals.com/index.php/sarcoidosis/article/view/2604.