Survival analysis of the two sample clusters identified from the cancer data set . The clusters were generated from the normal breast tissue signature. The estrogen receptor (ER)/progesterone receptor (PR)/ERBB2 negative cluster consisting of 38 samples shows poor survival compared to the remaining samples consisting of Lumenal and ERBB2 positive tumors (p = 0.000489).
Finak et al. Breast Cancer Research 2006 8:R58 doi:10.1186/bcr1608