Trial design of Japan Clinical Oncology Group study, JCOG 9208. ABMT, autologous bone marrow transplantation; CAF, cyclophosphamide, doxorubicin, 5‐fluorouracil; G‐CSF, granulocyte colony‐stimulating factor; HDC, high‐dose chemotherapy; PBSC, peripheral blood stem cell; STD, standard‐dose; TAM, tamoxifen.