Prognostic value of disseminated tumor cells in the bone marrow of patients with operable primary breast cancer: a long-term follow-up study - Domschke, Christoph; Englert, Stefan; Mayer, Luisa; Rom, Joachim; Heil, Jörg; Sohn, Christof; Schütz, Florian (Annals of surgical oncology, 2013)