Concurrent tamoxifen (TAM) + cyclophosphamide, epirubicin, and fluorouracil (CEF) versus TAM + delayed CEF after six months of endocrine therapy in metastatic breast cancer--a randomized trial from the Danish Breast Cancer Cooperative Group (DBCG).

Concurrent tamoxifen (TAM) + cyclophosphamide, epirubicin, and fluorouracil (CEF) versus TAM + delayed CEF after six months of endocrine therapy in metastatic breast cancer--a randomized trial from the Danish Breast Cancer Cooperative Group (DBCG).