Professor for Dermatology and Allergy; Director of Research at the Department of Dermatology and Allergy; Associate Director of the Allergie-Centrum-Charité; Head of the Specialty Clinics for Urticaria, Mastocytosis, Pruritus and Angioedema and the Dermatological Allergology Lab. He trained in experimental pathology at the Beth Israel Deaconess Hospital and Harvard Medical School. Dr. Mauer holds Board certifications for Dermatology and Allergology. Habilitation at the University of Mainz (2003). Head of urticaria network e.V. (UNEV). Coordinator of the National Priority Programme “Physiological functions of mast cells”. Head of GA²LEN Taskforce on urticaria and the EU COST programme “Mast cells and basophils”. He is a board member for ECARF in German Foundation for Pollen Information Service and has authored more than 325 articles in books and peer-reviewed journals.