1. Senckenberg Institute of Pathology University of Frankfurt Frankfurt Germany
2. Institute of Pathology Medical University of Graz Graz Austria
3. Berlin Reference and Consultation Centre for Lymphoma and Hematopathology Pathodiagnostik Berlin Berlin Germany
4. Institute of Pathology University Hospital Basel Basel Switzerland
5. Institute of Pathology Hannover Medical School Hannover Germany
6. Institute of Pathology Staedtisches Klinikum Muenchen Muenchen Germany
7. Institute of Surgical Pathology University Hospital Freiburg Germany
8. Department of Pathology University Medical Centre Erlangen Erlangen Germany
9. Institute of Pathology University of Cologne Cologne Germany