1. Department of Dermatology, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, USA
2. Dana Farber Cancer Institute, Department of Cutaneous Oncology, Boston, MA, USA
3. Department of Medicine, Harvard Medical School, Brigham and Women's/Faulkner Hospitals, Boston, MA, USA
4. Department of Surgery, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA
5. Department of Medicine, Tufts New England Medical Center, Boston, MA, USA
6. Department of Medicine, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA