Nakazuru S, Yoshio T, Suemura S, Itoh M, Araki M, Yoshioka C, Ohta M, Sueyoshi Y, Ohta T, Hasegawa H, Morita K, Toyama T, Kuzushita N, Kodama Y, Mano M, Mita E. Poorly differentiated endocrine carcinoma of the pancreas responded to gemcitabine: Case report. World J Gastroenterol 2010; 16(30): 3853-3856 [PMID: 20698050 DOI: 10.3748/wjg.v16.i30.3853]