Mansfield, S., S. Stawicki, R. Forbes, T. Papadimos, and D. Lindsey. “Acute Upper Gastrointestinal Bleeding Secondary to Kaposi Sarcoma As Initial Presentation of HIV Infection”. Journal of Gastrointestinal and Liver Diseases, Vol. 22, no. 4, Dec. 2013, pp. 441-5, https://jgld.ro/jgld/index.php/jgld/article/view/2013.4.13.