neuroendocrine carcinoma treatmentpancreatic neuroendocrine carcinomametastatic neuroendocrine carcinomaesophageal neuroendocrine carcinomaneuroendocrine bladder cancerneuroendocrine carcinoma lungneuroendocrine carcinoma colonsinonasal neuroendocrine carcinomagastric neuroendocrine carcinomaneuroendocrine tumor cervixcarcinoma with neuroendocrine featuresneuroendocrine carcinoma liver