Figure 6From: Prognostic impact of detecting viable circulating tumour cells in gastric cancer patients using a telomerase-specific viral agent: a prospective study Overall survival. (a) Overall survival of all patients. (b) Overall survival of patients with stage II–IV disease. Survival was compared according to the number of CTCs using Kaplan–Meier analysis and the log-rank statistics. **p < 0.01, * p < 0.05.Back to article page