Spada, Francesca, Fabio Gelsomino, Annalisa Fontana, Gabriele Luppi, Anna Maria Frezza, Antonio Ungaro, and Nicola Fazio. “Systemic Therapies in Metastatic Pancreatic Neuroendocrine Neoplasms (PNENs): Is There a Right Sequence? A Case Report and Review of the Literature”. European Journal of Oncology and Environmental Health 20, no. 1 (March 22, 2016): 75–81. Accessed February 23, 2025. https://mattioli1885journals.com/index.php/EJOEH/article/view/4275.