Relationship of lymph node metastasis rate with prognosis of esophageal squamous cell carcinoma after radical resection and postoperative adjuvant chemotherapy

• Wang Fang1, 
• Jia Jun1, 
• Yang Ying1, 
• Yu Jing1, 
• Sun Zhiwei1, 
• Liu Chuanling1, 
• Xiao Yanjie1, 
• Du Feng1, 
• Shi Youwu1, 
• Zhang Xiaodong1