Serpa, Maria João Raposo Linhares, Susana Franco, Diana Repolho, Francisco Branco, João Gramaça, and José Ferreira Júnior. “An Unusual Case of Primary Retroperitoneal Germ Cell Tumour in a Young Man”. European Journal of Case Reports in Internal Medicine 5, no. 7 (May 29, 2018). Accessed November 4, 2026. https://ejcrim.com/index.php/ejcrim/article/view/900.