1. Physical Sciences, Inc., Andover, Massachusetts, United States
2. Memorial Sloan Kettering Cancer Center, Dermatology Service, Department of Medicine, New York, United StatescUniversitat de Barcelona, Dermatology Department, Hospital Clínic, Barcelona, Spain
3. Memorial Sloan Kettering Cancer Center, Dermatology Service, Department of Medicine, New York, United States
4. Caliber I.D., Rochester, New York, United States