1. Harvard Medical School Boston MA 02115 U.S.A.
2. Department of Dermatology Massachusetts General Hospital Boston MA 02114 U.S.A.
3. Tufts University School of Medicine Boston MA 02111 U.S.A.
4. Dermatology Program Boston Children's Hospital Boston MA 02115 U.S.A.
5. Division of Adolescent Medicine Boston Children's Hospital Boston MA 02115 U.S.A.
6. Department of Surgery Boston Children's Hospital Boston MA 02115 U.S.A.
7. Department of Pediatric Oncology Dana Farber Cancer Institute Boston MA 02215 U.S.A.
8. Department of Pathology Boston Children's Hospital Boston MA 02115 U.S.A.