title: Preface.
authors.affiliation: Division of Surgical Pathology & Cytopathology, University of Virginia Health System, 1215 Lee Street, Charlottesville, VA 22908-0214, USA. Electronic address: mrwick1@usa.net.
authors.forename: Mark R
authors.initials: MR
authors.lastname: Wick
authors.affiliation: Division of Surgical Pathology & Cytopathology, University of Virginia Medical Center, 1215 Lee Street, Charlottesville, VA 22908-0214, USA. Electronic address: aag4b@virginia.edu.
authors.forename: Alejandro A
authors.initials: AA
authors.lastname: Gru
mesh_terms: D006801:Humans; D012871:Skin Diseases / Q000175:diagnosis* / Q000473:pathology*