A nomogram-based immunoprofile predicts overall survival for previously untreated patients with esophageal squamous cell carcinoma after esophagectomy ====================================================================================================================================================== * Jingjing Duan * Yongwei Xie * Lijuan Qu * Lingxiong Wang * Shunkai Zhou * Yu Wang * Zhongyi Fan * Shengsheng Yang * Shunchang Jiao