[1] Stavanger University Hospital,Department of Hematology and Oncology
[2] Stavanger University Hospital,Laboratory for Molecular Biology
[3] Oslo University Hospital,Division of Surgery and Cancer Medicine, Department of Pathology
[4] Oslo University Hospital,Division of Surgery, Transplantation and Cancer Medicine, Department of Oncology
[5] University of Oslo,K.G. Jebsen Center for Breast Cancer Research, Institute for Clinical Medicine