1. Anatomical Pathology Departments of CHU-Purpan, Toulouse
2. Departments of CHU-St. André, Bordeaux,
3. Hematology Departments of the Universities of Perugia, Italy
4. Hematology Departments of the Universities of Bologna, Italy
5. Departments of Pathology, Rigshospilalet and Genlofte Hospitals of the University of Copenhagen, Copenhagen, Denmark.
6. Departments of Hotel-Dieu, Paris, France