Survival analysis of breast cancer patients with negative and positive ERβ expression. Kaplan-Meier survival curve was displayed. The differences in survival time were analyzed by Log-Rank test. The patients (730 cases) were followed up for 2 to 10 years. During the follow-up time, 21 patients were censored. Patients died of other diseases, lost to follow-up at the time of last contact or before study cut-off were censored.
Guo et al. Diagnostic Pathology 2014 9:20 doi:10.1186/1746-1596-9-20