1. Division of Internal Medicine and Adult Primary Care, Tufts Medical Center, Boston, Massachusetts, USA
2. Department of Internal Medicine, Brigham and Women’s Hospital, Boston, Massachusetts, USA
3. Harvard Medical School, Boston, Massachusetts, USA
4. University of Massachusetts, Boston, Massachusetts, USA
5. Department of Dermatology, Harvard Medical School, Boston, Massachusetts, USA
6. Department of Dermatology, Brigham and Women’s Hospital, Boston, Massachusetts, USA