title: Looking beyond Placebo-Controlled Trials.
authors.affiliation: Unit for Population-Based Dermatology Research, St. John's Institute of Dermatology, King's College London, London, UK; Guy's and St. Thomas' Hospital NHS Foundation Trust, London, UK. Electronic address: carsten.flohr@kcl.ac.uk.
authors.forename: Carsten
authors.initials: C
authors.lastname: Flohr
authors.affiliation: Department of Dermatology, Venereology and Allergy, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany.
authors.forename: Stephan
authors.initials: S
authors.lastname: Weidinger