title: Introduction.
authors.affiliation: Professor of Dermatology Eastern Virginia Medical School Department of Dermatology Pariser Dermatology Norfolk, Virginia.
authors.forename: David M
authors.initials: DM
authors.lastname: Pariser
authors.affiliation: Professor and Chair Department of Dermatology University of California, Irvine Irvine, California.
authors.forename: Christopher B
authors.initials: CB
authors.lastname: Zachary