title: Letter from the editors.
authors.affiliation: Baylor Research Institute, Baylor University Medical Center, Dallas, TX USA.
authors.forename: Alan
authors.initials: A
authors.lastname: Menter
authors.affiliation: Dermatological Sciences, Salford Royal NHS Foundation Trust, the University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.
authors.forename: Richard
authors.initials: R
authors.lastname: Warren