Conclusions after 5 years (3 years of treatment):
http://headandneckca.asco.org/ASCO/N...eutersid=10705
"It's also worth noting, Dr. Gnant said, that "the overall outcome of patients in this trial was excellent; this is reassuring that low- and intermediate-risk breast cancer patients with endocrine-responsive disease, even in the premenopause, can be safely treated without adjuvant chemotherapy," he concluded."