State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of The First Affiliated Hospital Zhengzhou University Zhengzhou 450052 China;
Department of Pathology and Pathophysiology School of Basic Medical Sciences Zhengzhou University Zhengzhou 450000 China;
Department of Pathology Linzhou Esophageal Cancer Hospital Linzhou 456550 China;
Department of Oncology Nanyang Central Hospital Nanyang 473000 China;
Department of Thoracic Surgery Xinxiang Central Hospital Xinxiang 453000 China;
Department of Oncology Anyang District Hospital Anyang 455000 China;
Department of Thoracic Surgery Linzhou Center Hospital Linzhou 456550 China;
Department of Oncology the First Affiliated Hospital of Zhengzhou University Zhengzhou 450000 China;
Department of Gastroenterology The Second Affiliated Hospital of Nanyang Medical College Nanyang 473000 China;
Department of Pathology Anyang Tumor Hospital Anyang 455000 China;
Department of Radiotherapy The Affiliated Cancer Hospital of Zhengzhou University(Henan Cancer Hospital) Zhengzhou 450000 China;
Department of Pathology The Second Affiliated Hospital of Zhengzhou University Zhengzhou 450000 China;
Department of Pathology Hebei Provincial Cixian People's Hospital Cixian 056500 China;
Department of Thoracic Surgery Anyang Tumor Hospital Anyang 455000 China;
Department of Histology and Embryology School of Basic Medical Sciences Xinxiang Medical University Xinxiang 453000 China;
Department of Thoracic Surgery Linzhou People's Hospital Linzhou 456550 China;