F. Spada, “Systemic therapies in metastatic pancreatic neuroendocrine neoplasms (PNENs): is there a right sequence? A case report and review of the literature”., Eur J Oncol Env Hea, vol. 20, no. 1, pp. 75–81, Mar. 2016, Accessed: Nov. 14, 2025. [Online]. Available: https://mail.mattioli1885journals.com/index.php/EJOEH/article/view/4275