Günter Burg, MD is Professor of Dermatology and Chairman Emeritus, University of Zurich, Switzerland.

Heinz Kutzner, MD is Professor of Dermatology, Institute of Dermatopathology, Friedrichshafen, Germany,

Werner Kempf, MD is Professor of Dermatology, Department of Dermatopathology, University of Zurich, Switzerland.

Josef Feit, MD is Associate Professor of Pathology, University of Ostrava, Czech Republic.

Bruce R. Smoller, MD is Professor and Chairman of the Department of Pathology and Laboratory Medicine, University of Rochester, NY, School of Medicine and Dentistry.