NSABP halts B-14 trial: no benefit seen beyond 5 years of tamoxifen use.
D001943:Breast Neoplasms / Q000188:drug therapy*; D005260:Female; D006801:Humans; D007414:Intestinal Neoplasms / Q000188:drug therapy*; D013629:Tamoxifen / Q000008:administration & dosage*; D013997:Time Factors
D013629:Tamoxifen