Nivolumab-induced gastritis in a patient with metastatic melanoma D. Martínez-Acitores de la Mata; V. Busto-Bea; C. Cerezo-Aguirre;

Primary anorectal malignant melanoma as a rare cause of hematochezia A. Arrubla-Gamboa; D. Martínez-Acitores de la Mata; A. Larrea-Ramírez;