Doxorubicin with cyclophosphamide followed by docetaxel every 21 days compared with doxorubicin and docetaxel every 14 days as preoperative treatment in operable breast cancer: the GEPARDUO study of the German Breast Group. - Minckwitz,G von.; Raab,G.; Caputo,A. (J Clin Oncol, 2005)