Introduction
lung cancer, endometrial cancer, breast cancer
RECURRENCES, ENDOMETRIAL CANCER, RECURRENCE, ESTROGEN RECEPTOR POSITIVE BREAST CANCER, BREAST CANCER, CONTRALATERAL BREAST CANCER, LUNG CANCER
Tamoxifen is an effective adjuvant treatment for early breast cancer reducing recurrence and mortality rates [As first demonstrated by Fornander and coworkers, tamoxifen increased the risk of endometrial cancer [Estrogen receptor positive breast cancer is associated with late recurrences and prolonged follow-up from breast cancer trials is needed to fully evaluate benefits and side effects of new treatment regimes. Here we report results with 30 years follow-up on survival and incidence of contralateral breast cancer, endometrial cancer and lung cancer from the Swedish breast cancer group comparison of two years and five years adjuvant therapy.