Raymond Barnhill, M.D. is a Clinical Professor of Pathology and Dermatology and the Senior Consultant for Melanoma at the University of Miami Miller School of Medicine in Miami, Florida. He is also the Medical Director of the Global Pathology Laboratory Services in Miami. A. Neil Crowson, M.D. is a Clinical Professor and the Director of Dermatopathology at the University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma. Cynthia M. Magro, M.D. is the Director of the Comprehensive Dermatopathology Service, New York Presbyterian Hospital and Professor of Pathology and Laborator...