Cortellini, Fabio, Giovanni Marasco, Matteo Renzulli, Francesco Vasuri, and Luigi Ricciardiello. “Gastric Melanoma of Unknown Primary”. Journal of Gastrointestinal and Liver Diseases 30, no. 1 (March 12, 2021): 14-14. Accessed August 3, 2021. https://jgld.ro/jgld/index.php/jgld/article/view/3420.