4-year event-free survival was 91.0 for exemestane and 91.2 for anastrozole (stratified hazard
Chemexpress 4-year event-free survival was 91.0 for exemestane and 91.two for anastrozole (stratified hazard ratio 1.02, 95 self-confidence interval 0.87?.18, P = 0.85). General, distant disease-free survival and diseasespecific survival have…