Affiliation: | 1. Department of Thoracic Surgery, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan, P. R. China.; 2. Department of Oncology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan, P. R. China.; 3. Department of Gastroscopy, The First Affiliated Hospital of Xinxiang Medical University, Weihui, Henan, P. R. China.; Duke Cancer Institute, United States of America, |