1. Department of Dermatology and Cutaneous Biology, and Biochemistry and Molecular Biology, Jefferson Medical College, and Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, PA 19107, U.S.A.
2. Department of Dermatology, Medical College of Wisconsin, Milwaukee, WI, U.S.A.
3. Special Needs Program, Children’s Hospital of Wisconsin, Milwaukee, WI, U.S.A.