1. Department of Histopathology; Royal Marsden Hospital; London UK
2. Serviço de Anatomia Patológica; IPOLFG; Lisboa Portugal
3. Department of Pathology; Assistance Publique, Hôpitaux de Paris (AP-HP); Groupe hospitalier Henri Mondor-Albert Chenevier; Créteil France
4. Hematopathology Section; Laboratory of Pathology; National Cancer Institute; Center for Cancer Research; Bethesda MD USA
5. Department of Pathology; VU University Medical Centre; Amsterdam The Netherlands
6. Department of Pathology; Samsung Medical Centre; Sungkyunkwan University; Seoul Korea
7. Department of Pathology; David Geffen School of Medicine; University of California; Los Angeles CA USA
8. Department of Pathology; Haematopathology Section and Lymph Node Registry; University of Kiel; Kiel Germany