1 Division of Dermatology, Department of Internal Medicine, Albert Einstein College of Medicine, Bronx, New York.
2 Dermatology Division, Memorial Sloan Kettering Cancer Center, New York, New York.
3 Departments of Dermatology and Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
4 Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York.
5 Division of Dermatology, Department of Internal Medicine, Albert Einstein College of Medicine, Bronx, New York. Electronic address: srcohen@montefiore.org.