Chiarion-Sileni, Vanna, Sara Valpione, and Jacopo Pigozzo. 2015. “GI Tumours. Which Advances in Esophageal Cancer?”. European Journal of Oncology and Environmental Health 20 (1S): 29-31. https://mattioli1885journals.com/index.php/EJOEH/article/view/4231.