Fig. 2

Kaplan-Meier survival curves for (a) stage IA, (b) stage IB, (c) stage IC and (d) stage IIA drawing on the basis of Table 3. P < 0.05 was considered to indicate a statistically significant difference
Kaplan-Meier survival curves for (a) stage IA, (b) stage IB, (c) stage IC and (d) stage IIA drawing on the basis of Table 3. P < 0.05 was considered to indicate a statistically significant difference