Figure 2From: Prognostic impact of vascular invasion and standardization of its evaluation in stage I non-small cell lung cancer Recurrence-free survival according to the number of invaded blood vessels. A) Comparison of 0 v (n = 274), 1v (n = 24), and ≥2 v (n = 37) cases. B) Comparison between 0 v + 1 v (n = 298) and ≥2 v (n = 37) cases.Back to article page