1. Division of Hematopathology, Mayo Clinic, Rochester, MN
2. Division of Hematopathology, Stanford University, Stanford, CA
3. Division of Hematopathology, Mayo Clinic, Phoenix, AZ
4. Department of Pathology, University of Utah School of Medicine, Salt Lake City
5. Institute of Pathology, University of Munich (LMU), Munich, Germany
6. Department of Pathology, TexasTech University Health Sciences Center, P.L. Foster School of Medicine, El Paso
7. Department of Hematopathology, MD Anderson Cancer Center, Houston, TX
8. Institute of Pathology, University of Würzburg, Würzburg, Germany
9. Institute of Pathology and Neuropathology, Eberhard Karls University of Tübingen and Comprehensive Cancer Center, Tübingen University Hospital, Tübingen, Germany