Comparative analysis of micrometastasis to the bone marrow and lymph nodes of node-negative breast cancer patients receiving no adjuvant therapy. - Braun,S.; Cevatli,B.S.; Assemi,C.; Janni,W.; Kentenich,C.R.; Schindlbeck,C.; Rjosk,D.; Hepp,F. (J Clin Oncol, 2001)