Conclusion
lung cancer, endometrial cancer, breast cancer
LUNG CANCER, CONTRALATERAL BREAST CANCER, ENDOMETRIAL CANCER, BREAST CANCER
Three more years of tamoxifen therapy reduced the risk of breast cancer mortality. The difference was established during the first 15 years after randomization. Moreover, the incidence of contralateral breast cancer gradually decreased for 30 years. The incidence of lung cancer was reduced in the five-year group. In contrast the incidence of endometrial cancer was increased.