1. Prognostic Value of Different Lymph Node Staging Methods in Esophageal Squamous Cell Carcinoma After Esophagectomy 
San-Gang Wu, MD, Feng-Yan Li, MD, Juan Zhou, MD, Qin Lin, MD, Jia-Yuan Sun, MD, Huan-Xin Lin, MD, Xun-Xing Guan, MD, Zhen- Yu He, MD 
The Annals of Thoracic Surgery 
Volume 99, Issue 1, Pages (January 2015)
DOI: /j.athoracsur
Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions

2. Fig 1
Effects of (A) the number of involved lymph nodes, (B) the number of removed lymph nodes (RLNs), and (C) the number of negative lymph nodes (NLNs) on the survival of esophageal carcinoma patients.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions

3. Fig 2
(A) Effect of the number of negative lymph nodes (NLNs) on the survival of esophageal carcinoma patients after groups were combined. Effect of the number of negative lymph nodes on the survival of esophageal carcinoma patients at (B) pN0, (C) pN1, and (D) pN2–3.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2015 The Society of Thoracic Surgeons Terms and Conditions