1. Department of Dermatology Brigham and Women's Hospital Boston MA U.S.A.
2. Centre for Sarcoma and Bone Oncology Dana Farber Cancer Institute 375 Longwood Avenue Boston MA 02115 U.S.A.
3. Harvard Medical School Boston MA U.S.A.
4. Centre for Hematological Oncology Dana Farber Cancer Institute 375 Longwood Avenue Boston MA 02115 U.S.A.
5. Department of Pathology Brigham and Women's Hospital Boston MA U.S.A.
6. Centre for Cutaneous Oncology Dana Farber Cancer Institute 375 Longwood Avenue Boston MA 02115 U.S.A.