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Disseminated Tumor Cells in Blood and Bone Marrow Samples from Patients Previously Treated for Breast Cancer

Trial Status: active

This trial studies disseminated tumor cells in blood and bone marrow samples from patients previously treated for breast cancer. Studying samples of blood and bone marrow from patients with breast cancer in the laboratory may help doctors to determine whether there are any dormant tumor cells in the body. It may also help doctors to better understand what disseminated tumor cells are and how they can be best treated to improve the treatment and prevention of breast cancer in the future.