Sections View Full Chapter Figures Tables Videos Annotate Full Chapter Figures Tables Videos Supplementary Content + Download Section PDF ++ Antonella Tosti, MD ++ Fredric Brandt Endowed Professor ++ Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery ++ University of Miami ++ Miami, Florida ++ ++ Bianca Maria Piraccini, MD, PhD ++ Professor and Chair ++ Dermatology Unit, Department of Medical and Surgical Sciences ++ University of Bologna ++ Bologna, Italy