Qi, Xiaowei Association between the spread of circulating tumor cells and breast cancer subtypes. [electronic resource] - Breast cancer research : BCR 2010 - 402 p. digital Publication Type: Comment; Letter ISSN: 1465-542X Standard No.: 10.1186/bcr2582 doi Subjects--Topical Terms: Breast Neoplasms--classificationFemaleHumansNeoplasms, Basal Cell--classificationNeoplastic Cells, Circulating--pathologyPrognosisReceptor, ErbB-2--metabolism