1. Department of Dermatology, Yale School of Medicine, New Haven, Connecticut
2. American Academy of Dermatology, Rosemont, Illinois
3. Department of Dermatology, Stanford University School of Medicine, Palo Alto, California
4. Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia
5. Department of Internal Medicine, Division of Infectious Diseases, Perelman School of Medicine, University of Pennsylvania, Philadelphia