1. Department of Dermatology, Oxford University Hospitals Trust, Oxford, England
2. Department of Dermatology, P. D. Hinduja National Hospital and Medical Research Center, Mumbai, India 3Department of Dermatology, Sir HN Reliance Foundation Hospital, Mumbai, India
3. Department of Obstetrics and Gynecology, Geisel School of Medicine, Dartmouth College, Hanover, New Hampshire 5Department of Surgery (Dermatology), Geisel School of Medicine, Dartmouth College, Hanover, New Hampshire