1. Pneumonectomy for stage i (T1N0 and T2N0) nonsmall cell lung cancer has potent, adverse impact on survival 
Christos Alexiou, FRCS, David Beggs, FETCS, Patrick Onyeaka, FRCS, Kostas Kotidis, FRCS, Sudip Ghosh, FRCS, Lynda Beggs, RGN, David N Hopkinson, FRCS, John P Duffy, FRCS, W.Ellis Morgan, FRCS, Gaetano Rocco, FETCS 
The Annals of Thoracic Surgery 
Volume 76, Issue 4, Pages (October 2003)
DOI: /S (03)00883-X

2. Fig 1
Overall Kaplan-Meier survival estimates for patients undergoing a lung resection smaller than pneumonectomy (continuous line) and pneumonectomy (interrupted line) (log rank test, p = ; Breslow test, p < ; and Tarone–Ware tests, p < ). The numbers in parentheses represent the upper and lower 95% confidence interval limits.
The Annals of Thoracic Surgery  , DOI: ( /S (03)00883-X)

3. Fig 2
Kaplan-Meier survival estimates after a lung resection smaller than pneumonectomy (continuous line) and pneumonectomy (interrupted line) for patients having T1N0 disease (log rank, Breslow, and Tarone–Ware tests, p = 0.002). The numbers in parentheses represent the lower and upper 95% confidence interval limits.
The Annals of Thoracic Surgery  , DOI: ( /S (03)00883-X)

4. Fig 3
Kaplan-Meier survival estimates after a lung resection smaller than pneumonectomy (continuous line) and pneumonectomy (interrupted line) for patients having T2N0 disease (log rank test, p = 0.04; Breslow test, p = ; and Tarone–Ware test, p = 0.001). The numbers in parentheses represent the lower and upper 95% confidence interval limits. The survival curves overlap 5 years postoperatively (when relatively small numbers of patients remain at risk), but there is a marked difference in the estimated median survival between the groups.
The Annals of Thoracic Surgery  , DOI: ( /S (03)00883-X)