Napolitano, Luca, Valentina D’Alessandro, Domenico Risio, Camilla Marinelli, Roberta Cianci, and Paolo Innocenti. “Association Between Neuroendocrine Tumor of the Ileum and Two Colonic Primary Malignancies”. Annali Italiani di Chirurgia 6, no. October (October 4, 2017): 1–5. Accessed May 8, 2024. https://annaliitalianidichirurgia.it/index.php/aic/article/view/660.