19. Ratio of lymph node metastasis and lymphavascular invasion predict diseasespecific survival of proximal gastric adenocarcinoma in Chinese patients following curative resection

Ai-Wen Wu, Hong Yang, Yong-Ning Jia, Cheng-hai Zhang, Fei Shan, Lian-Hai Zhang, Zi-Yu Li, Xiao-Jiang Wu, Xiang-Long Zong, Jia-Fu Ji