Figure 2 .

Kaplan-Meier curves of disease-free survival in 54 patients (n=3 in group N0(i+),n=28 in group N0, and n=22 in group N+). Breslow estimation method was used to test differences in disease-free survival among groups.

Wang et al. Diagnostic Pathology 2012 7:71   doi:10.1186/1746-1596-7-71
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