Oligometastatic Mixed Neuroendocrine Adenocarcinoma of the Esophago-Gastric Junction: A Case of Successful Multidisciplinary Management, the Lessons Learnt and Review of the Literature

食管胃交界处寡转移性混合性神经内分泌腺癌：一例成功的多学科综合治疗病例、经验教训及文献回顾