OUTLINE: This is a randomized, double blind, placebo controlled study of tamoxifen. Patients are randomized to one of 3 treatment arms. Arm I: Patients receive placebo orally twice daily for one year. Arms II and III: Patients receive tamoxifen, at 1 of 2 different doses, orally twice daily for one year. Quality of life is assessed before treatment and then monthly thereafter. Patients are followed monthly until death.