Affiliation: | a I. Medical Clinic, University of Erlangen-Nürnberg, Erlangen, Germany b Department of Dermatology, University Medical Center of the Johannes Gutenberg-Universität Mainz, Mainz, Germany c Institut Universitaire de Pathologie, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland d Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany |