1. University of Zurich and University Hospital Zurich, Department of Medical Oncology and Haematology, Zurich, Switzerland
2. University of Zurich and University Hospital Zurich, Department of Obstetrics, Zurich, Switzerland
3. University of Zurich and University Hospital Zurich, Department of Pathology and Molecular Pathology, Zurich, Switzerland
4. Inselspital, Bern University Hospital, Department of Haematology and Laboratory Haematology, Bern, Switzerland