N. I. Kondo, Y. Ikeda, S.- ichiro Maehara, R. Sugimoto, K.- ichi Nishiyama, and Y. Sakaguchi, “Role of Resection of the Primary Pancreatic Neuroendocrine Tumor in the Multidisciplinary Treatment of Patients with Unresectable Synchronous Liver Metastases: A Case Series”, JOP. J Pancreas (Online), vol. 14, no. 4, pp. 415–422, Jul. 2013.