1. Frequency and Prognostic Significance of Preoperatively Detected Enlarged Regional Lymph Nodes in Patients with Pathological Stage I Non-small Cell Lung Cancer Following Resection 
Jenny K. Hoang, MBBS, FRANZCR, Edward Patz, MD, Dorothy Giroux, MS, Peter Goldstraw, FRCS 
Journal of Thoracic Oncology 
Volume 2, Issue 12, Pages (December 2007)
DOI: /JTO.0b013e31815c04b4
Copyright © 2007 International Association for the Study of Lung Cancer Terms and Conditions

2. FIGURE 1
Survival for patients with pathological stage I non-small cell lung cancer. Clinical N0 versus clinical N1–N2.
Median survival times were 102 and 107 months for patients with clinical stage I and II–IIIA (excluding T3N0M0), respectively (hazard ratio 1.16, p = 0.01), shown in the Kaplan-Meier survival curve. The survival curves converge at 8 years postsurgery. The 95% confidence limits for the median survival time (MST) estimates are shown in parentheses.
Journal of Thoracic Oncology 2007 2, DOI: ( /JTO.0b013e31815c04b4)
Copyright © 2007 International Association for the Study of Lung Cancer Terms and Conditions

3. FIGURE 2
Non-contrast computed tomography scan of the thorax shows a cavitary right upper lobe non-small cell lung cancer and enlarged right paratracheal (Station 4R) lymph node (arrow). Mediastinoscopy was performed, and there was no evidence of lymph node metastasis on pathological evaluation. All nodes were reactive.
Journal of Thoracic Oncology 2007 2, DOI: ( /JTO.0b013e31815c04b4)
Copyright © 2007 International Association for the Study of Lung Cancer Terms and Conditions

4. FIGURE 3
Survival for pathological stage I according to histology. Survival curves with 95% confidence limits for the median survival time (MST) estimates are shown in parentheses.
Journal of Thoracic Oncology 2007 2, DOI: ( /JTO.0b013e31815c04b4)
Copyright © 2007 International Association for the Study of Lung Cancer Terms and Conditions