1 Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland.
2 Department of Pathology and Molecular Pathology, University Hospital Zurich and University of Zurich, Zurich, Switzerland.
3 Institute for Clinical Pathology Medica, Hottingerstrasse 9/11, 8032, Zurich, Switzerland.
4 Division of Hematology and Oncology, Kantonsspital Muensterlingen, Muensterlingen, Switzerland.
5 Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Rämistrasse 100, 8091, Zurich, Switzerland. Stefan.Balabanov@usz.ch.