Mishe’el, Samer, Michael Ziv, and Naiel Bisharat. “Black Urine and Black Pleural Fluid: A Distinctive Presentation of Metastatic Melanoma”. European Journal of Case Reports in Internal Medicine 3, no. 4 (June 7, 2016). Accessed April 28, 2024. http://www.ejcrim.com/index.php/EJCRIM/article/view/416.