Affiliation: | 1. Department of Dermatology and Allergy, Hannover Medical School, Hannover, Germany;2. Department of Pulmonology, Sint Franciscus Gasthuis, Rotterdam, the Netherlands;3. Institute for Transfusion Medicine, Hannover Medical School, Hannover, Germany;4. Department of Dermatology, University of Münster, Münster, Germany;5. Laboratory of Clinical Immunology, KU Leuven, Leuven, Belgium |