1. Division of Allergology; Paul-Ehrlich-Institut; Langen Germany
2. Department of Biopolymers; University of Bayreuth; Bayreuth Germany
3. Department of Pathophysiology and Allergy Research and Christian Doppler Laboratory for Immunomodulation; Medical University of Vienna; Vienna Austria
4. Department of Dermatology and Allergology; Philipps University Marburg; Marburg Germany